diff --git a/Phaser/Phaser.csproj b/Phaser/Phaser.csproj
index 60c9de63..e3c83e30 100644
--- a/Phaser/Phaser.csproj
+++ b/Phaser/Phaser.csproj
@@ -116,6 +116,10 @@
       <DependentUpon>AABB.ts</DependentUpon>
     </Content>
     <TypeScriptCompile Include="physics\IPhysicsShape.ts" />
+    <TypeScriptCompile Include="physics\Circle.ts" />
+    <Content Include="physics\Circle.js">
+      <DependentUpon>Circle.ts</DependentUpon>
+    </Content>
     <Content Include="physics\IPhysicsShape.js">
       <DependentUpon>IPhysicsShape.ts</DependentUpon>
     </Content>
diff --git a/Phaser/Statics.ts b/Phaser/Statics.ts
index 472a1d3c..23bc4afb 100644
--- a/Phaser/Statics.ts
+++ b/Phaser/Statics.ts
@@ -24,6 +24,60 @@ module Phaser {
         static GEOM_LINE: number = 3;
         static GEOM_POLYGON: number = 4;
 
+        /**
+         * Flag used to allow GameObjects to collide on their left side
+         * @type {number}
+         */
+        static LEFT: number = 0x0001;
+
+        /**
+         * Flag used to allow GameObjects to collide on their right side
+         * @type {number}
+         */
+        static RIGHT: number = 0x0010;
+
+        /**
+         * Flag used to allow GameObjects to collide on their top side
+         * @type {number}
+         */
+        static UP: number = 0x0100;
+
+        /**
+         * Flag used to allow GameObjects to collide on their bottom side
+         * @type {number}
+         */
+        static DOWN: number = 0x1000;
+
+        /**
+         * Flag used with GameObjects to disable collision
+         * @type {number}
+         */
+        static NONE: number = 0;
+
+        /**
+         * Flag used to allow GameObjects to collide with a ceiling
+         * @type {number}
+         */
+        static CEILING: number = Types.UP;
+
+        /**
+         * Flag used to allow GameObjects to collide with a floor
+         * @type {number}
+         */
+        static FLOOR: number = Types.DOWN;
+
+        /**
+         * Flag used to allow GameObjects to collide with a wall (same as LEFT+RIGHT)
+         * @type {number}
+         */
+        static WALL: number = Types.LEFT | Types.RIGHT;
+
+        /**
+         * Flag used to allow GameObjects to collide on any face
+         * @type {number}
+         */
+        static ANY: number = Types.LEFT | Types.RIGHT | Types.UP | Types.DOWN;
+
     }
 
 }
diff --git a/Phaser/components/sprite/Physics.ts b/Phaser/components/sprite/Physics.ts
index 7379d0ff..cce6c279 100644
--- a/Phaser/components/sprite/Physics.ts
+++ b/Phaser/components/sprite/Physics.ts
@@ -2,6 +2,8 @@
 /// <reference path="../../core/Point.ts" />
 /// <reference path="../../math/Vec2Utils.ts" />
 /// <reference path="../../physics/AABB.ts" />
+/// <reference path="../../physics/Circle.ts" />
+/// <reference path="../../physics/IPhysicsShape.ts" />
 
 /**
 * Phaser - Components - Physics
@@ -23,6 +25,7 @@ module Phaser.Components {
 
             this.velocity = new Vec2;
             this.acceleration = new Vec2;
+            this.touching = Phaser.Types.NONE;
 
             this.shape = this.game.world.physics.add(new Phaser.Physics.AABB(this.game, this._sprite, this._sprite.x, this._sprite.y, this._sprite.width, this._sprite.height));
 
@@ -37,7 +40,7 @@ module Phaser.Components {
          * Whether this object will be moved by impacts with other objects or not.
          * @type {boolean}
          */
-        public immovable: bool;
+        public immovable: bool = false;
 
         /**
          * Set this to false if you want to skip the automatic movement stuff
@@ -52,12 +55,22 @@ module Phaser.Components {
         public velocity: Vec2;
         public acceleration: Vec2;
 
+        public touching: number;
+
+        public setCircle(diameter: number) {
+
+            this.game.world.physics.remove(this.shape);
+            this.shape = this.game.world.physics.add(new Phaser.Physics.Circle(this.game, this._sprite, this._sprite.x, this._sprite.y, diameter));
+            this._sprite.physics.shape.physics = this;
+
+        }
+
         /**
          * Internal function for updating the position and speed of this object.
          */
         public update() {
 
-            if (this.moves)
+            if (this.moves && this.shape)
             {
                 this._sprite.x = (this.shape.position.x - this.shape.bounds.halfWidth) - this.shape.offset.x;
                 this._sprite.y = (this.shape.position.y - this.shape.bounds.halfHeight) - this.shape.offset.y;
@@ -74,7 +87,8 @@ module Phaser.Components {
 
             this._sprite.texture.context.fillStyle = color;
             this._sprite.texture.context.fillText('Sprite: (' + this._sprite.frameBounds.width + ' x ' + this._sprite.frameBounds.height + ')', x, y);
-            this._sprite.texture.context.fillText('x: ' + this._sprite.frameBounds.x.toFixed(1) + ' y: ' + this._sprite.frameBounds.y.toFixed(1) + ' rotation: ' + this._sprite.rotation.toFixed(1), x, y + 14);
+            //this._sprite.texture.context.fillText('x: ' + this._sprite.frameBounds.x.toFixed(1) + ' y: ' + this._sprite.frameBounds.y.toFixed(1) + ' rotation: ' + this._sprite.rotation.toFixed(1), x, y + 14);
+            this._sprite.texture.context.fillText('x: ' + this.shape.bounds.x.toFixed(1) + ' y: ' + this.shape.bounds.y.toFixed(1) + ' rotation: ' + this._sprite.rotation.toFixed(1), x, y + 14);
             this._sprite.texture.context.fillText('vx: ' + this.velocity.x.toFixed(1) + ' vy: ' + this.velocity.y.toFixed(1), x, y + 28);
             this._sprite.texture.context.fillText('ax: ' + this.acceleration.x.toFixed(1) + ' ay: ' + this.acceleration.y.toFixed(1), x, y + 42);
 
diff --git a/Phaser/core/Circle.ts b/Phaser/core/Circle.ts
index e2468462..a5d98a34 100644
--- a/Phaser/core/Circle.ts
+++ b/Phaser/core/Circle.ts
@@ -27,7 +27,6 @@ module Phaser {
 
         private _diameter: number = 0;
         private _radius: number = 0;
-        //private _pos: Vec2;
 
         /**
 	     * The x coordinate of the center of the circle
diff --git a/Phaser/physics/AABB.ts b/Phaser/physics/AABB.ts
index ad5ec9ce..a508cbd8 100644
--- a/Phaser/physics/AABB.ts
+++ b/Phaser/physics/AABB.ts
@@ -53,6 +53,9 @@ module Phaser.Physics {
         public preUpdate() {
 
             this.oldPosition.copyFrom(this.position);
+
+            this.bounds.x = this.position.x - this.bounds.halfWidth;
+            this.bounds.y = this.position.y - this.bounds.halfHeight;
             
             if (this.sprite)
             {
@@ -71,8 +74,8 @@ module Phaser.Physics {
 
         public update() {
 
-            this.bounds.x = this.position.x;
-            this.bounds.y = this.position.y;
+            //this.bounds.x = this.position.x;
+            //this.bounds.y = this.position.y;
 
         }
 
@@ -85,6 +88,12 @@ module Phaser.Physics {
 
         public render(context:CanvasRenderingContext2D) {
 
+            //context.beginPath();
+            //context.strokeStyle = 'rgb(255,255,0)';
+            //context.strokeRect(this.bounds.x, this.bounds.y, this.bounds.width, this.bounds.height);
+            //context.stroke();
+            //context.closePath();
+
             context.beginPath();
             context.strokeStyle = 'rgb(0,255,0)';
             context.strokeRect(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight, this.bounds.width, this.bounds.height);
@@ -95,7 +104,7 @@ module Phaser.Physics {
             context.fillStyle = 'rgb(0,255,0)';
             context.fillRect(this.position.x, this.position.y, 2, 2);
 
-            if (this.oH == 1)
+            if (this.physics.touching == Phaser.Types.LEFT)
             {
                 context.beginPath();
                 context.strokeStyle = 'rgb(255,0,0)';
@@ -104,7 +113,7 @@ module Phaser.Physics {
                 context.stroke();
                 context.closePath();
             }
-            else if (this.oH == -1)
+            else if (this.physics.touching == Phaser.Types.RIGHT)
             {
                 context.beginPath();
                 context.strokeStyle = 'rgb(255,0,0)';
@@ -114,7 +123,7 @@ module Phaser.Physics {
                 context.closePath();
             }
 
-            if (this.oV == 1)
+            if (this.physics.touching == Phaser.Types.UP)
             {
                 context.beginPath();
                 context.strokeStyle = 'rgb(255,0,0)';
@@ -123,7 +132,7 @@ module Phaser.Physics {
                 context.stroke();
                 context.closePath();
             }
-            else if (this.oV == -1)
+            else if (this.physics.touching == Phaser.Types.DOWN)
             {
                 context.beginPath();
                 context.strokeStyle = 'rgb(255,0,0)';
diff --git a/Phaser/physics/Circle.ts b/Phaser/physics/Circle.ts
new file mode 100644
index 00000000..11fc6f44
--- /dev/null
+++ b/Phaser/physics/Circle.ts
@@ -0,0 +1,143 @@
+/// <reference path="../Game.ts" />
+/// <reference path="../core/Rectangle.ts" />
+/// <reference path="../math/Vec2Utils.ts" />
+/// <reference path="PhysicsManager.ts" />
+/// <reference path="IPhysicsShape.ts" />
+
+/**
+* Phaser - Physics - Circle
+*/
+
+module Phaser.Physics {
+
+    export class Circle implements IPhysicsShape {
+
+        constructor(game: Game, sprite: Sprite, x: number, y: number, diameter: number) {
+
+            this.game = game;
+            this.world = game.world.physics;
+
+            if (sprite !== null)
+            {
+                this.sprite = sprite;
+                this.scale = Vec2Utils.clone(this.sprite.scale);
+            }
+            else
+            {
+                this.sprite = null;
+                this.physics = null;
+                this.scale = new Vec2(1, 1);
+            }
+
+            this.radius = diameter / 2;
+            this.bounds = new Rectangle(x + Math.round(diameter / 2), y + Math.round(diameter / 2), diameter, diameter);
+            this.position = new Vec2(x + this.bounds.halfWidth, y + this.bounds.halfHeight);
+            this.oldPosition = new Vec2(x + this.bounds.halfWidth, y + this.bounds.halfHeight);
+            this.offset = new Vec2(0, 0);
+
+        }
+
+        public game: Game;
+        public world: PhysicsManager;
+        public sprite: Sprite;
+        public physics: Phaser.Components.Physics;
+
+        public position: Vec2;
+        public oldPosition: Vec2;
+        public offset: Vec2;
+        public scale: Vec2;
+        public bounds: Rectangle;
+
+        public radius: number;
+        public oH: number;
+        public oV: number;
+
+        public preUpdate() {
+
+            this.oldPosition.copyFrom(this.position);
+            
+            if (this.sprite)
+            {
+                this.position.setTo((this.sprite.x + this.bounds.halfWidth) + this.offset.x, (this.sprite.y + this.bounds.halfHeight) + this.offset.y);
+    
+                //  Update scale / dimensions
+                if (Vec2Utils.equals(this.scale, this.sprite.scale) == false)
+                {
+                    this.scale.copyFrom(this.sprite.scale);
+                    //  needs to be radius based (+ square)
+                    //this.bounds.width = this.sprite.width;
+                    //this.bounds.height = this.sprite.height;
+                }
+            }
+
+        }
+
+        public update() {
+
+            this.bounds.x = this.position.x;
+            this.bounds.y = this.position.y;
+
+        }
+
+        public setSize(width: number, height: number) {
+
+            this.bounds.width = width;
+            this.bounds.height = height;
+
+        }
+
+        public render(context:CanvasRenderingContext2D) {
+
+            context.beginPath();
+            context.strokeStyle = 'rgb(0,255,0)';
+            context.arc(this.position.x, this.position.y, this.radius, 0, Math.PI * 2);
+            context.stroke();
+            context.closePath();
+
+            //  center point
+            context.fillStyle = 'rgb(0,255,0)';
+            context.fillRect(this.position.x, this.position.y, 2, 2);
+
+            if (this.oH == 1)
+            {
+                context.beginPath();
+                context.strokeStyle = 'rgb(255,0,0)';
+                context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                context.lineTo(this.position.x - this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                context.stroke();
+                context.closePath();
+            }
+            else if (this.oH == -1)
+            {
+                context.beginPath();
+                context.strokeStyle = 'rgb(255,0,0)';
+                context.moveTo(this.position.x + this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                context.stroke();
+                context.closePath();
+            }
+
+            if (this.oV == 1)
+            {
+                context.beginPath();
+                context.strokeStyle = 'rgb(255,0,0)';
+                context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                context.stroke();
+                context.closePath();
+            }
+            else if (this.oV == -1)
+            {
+                context.beginPath();
+                context.strokeStyle = 'rgb(255,0,0)';
+                context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                context.stroke();
+                context.closePath();
+            }
+
+        }
+
+    }
+
+}
\ No newline at end of file
diff --git a/Phaser/physics/PhysicsManager.ts b/Phaser/physics/PhysicsManager.ts
index a9e476f2..10c010e9 100644
--- a/Phaser/physics/PhysicsManager.ts
+++ b/Phaser/physics/PhysicsManager.ts
@@ -1,5 +1,6 @@
 /// <reference path="../Game.ts" />
 /// <reference path="IPhysicsShape.ts" />
+/// <reference path="../utils/RectangleUtils.ts" />
 
 /**
 * Phaser - PhysicsManager
@@ -60,15 +61,44 @@ module Phaser.Physics {
 
         }
 
+        public remove(shape: IPhysicsShape) {
+
+            this._length = this._objects.length;
+
+            for (var i = 0; i < this._length; i++)
+            {
+                if (this._objects[i] === shape)
+                {
+                    this._objects[i] = null;
+                }
+            }
+
+        }
+
         public update() {
 
             this._length = this._objects.length;
 
             for (var i = 0; i < this._length; i++)
             {
-                this._objects[i].preUpdate();
-                this.updateMotion(this._objects[i]);
-                this.collideWorld(this._objects[i]);
+                if (this._objects[i])
+                {
+                    this._objects[i].preUpdate();
+                    this.updateMotion(this._objects[i]);
+                    this.collideWorld(this._objects[i]);
+
+                    if (this._objects[i].physics.immovable == false)
+                    {
+                        for (var x = 0; x < this._length; x++)
+                        {
+                            if (this._objects[x] !== this._objects[i])
+                            {
+                                this.collideShapes(this._objects[i], this._objects[x]);
+                            }
+                        }
+                    }
+
+                }
             }
 
         }
@@ -78,14 +108,17 @@ module Phaser.Physics {
             //  iterate through the objects here, updating and colliding
             for (var i = 0; i < this._length; i++)
             {
-                this._objects[i].render(this.game.stage.context);
+                if (this._objects[i])
+                {
+                    this._objects[i].render(this.game.stage.context);
+                }
             }
 
         }
 
-        private updateMotion(obj: IPhysicsShape) {
+        private updateMotion(shape: IPhysicsShape) {
 
-            if (obj.physics.moves == false)
+            if (shape.physics.moves == false)
             {
                 return;
             }
@@ -97,17 +130,17 @@ module Phaser.Physics {
             this.angularVelocity += velocityDelta;
             */
 
-            this._velocityDelta = (this.computeVelocity(obj.physics.velocity.x, obj.physics.gravity.x, obj.physics.acceleration.x, obj.physics.drag.x) - obj.physics.velocity.x) / 2;
-            obj.physics.velocity.x += this._velocityDelta;
-            this._delta = obj.physics.velocity.x * this.game.time.elapsed;
-            obj.physics.velocity.x += this._velocityDelta;
-            obj.position.x += this._delta;
+            this._velocityDelta = (this.computeVelocity(shape.physics.velocity.x, shape.physics.gravity.x, shape.physics.acceleration.x, shape.physics.drag.x) - shape.physics.velocity.x) / 2;
+            shape.physics.velocity.x += this._velocityDelta;
+            this._delta = shape.physics.velocity.x * this.game.time.elapsed;
+            shape.physics.velocity.x += this._velocityDelta;
+            shape.position.x += this._delta;
 
-            this._velocityDelta = (this.computeVelocity(obj.physics.velocity.y, obj.physics.gravity.y, obj.physics.acceleration.y, obj.physics.drag.y) - obj.physics.velocity.y) / 2;
-            obj.physics.velocity.y += this._velocityDelta;
-            this._delta = obj.physics.velocity.y * this.game.time.elapsed;
-            obj.physics.velocity.y += this._velocityDelta;
-            obj.position.y += this._delta;
+            this._velocityDelta = (this.computeVelocity(shape.physics.velocity.y, shape.physics.gravity.y, shape.physics.acceleration.y, shape.physics.drag.y) - shape.physics.velocity.y) / 2;
+            shape.physics.velocity.y += this._velocityDelta;
+            this._delta = shape.physics.velocity.y * this.game.time.elapsed;
+            shape.physics.velocity.y += this._velocityDelta;
+            shape.position.y += this._delta;
 
         }
 
@@ -163,6 +196,70 @@ module Phaser.Physics {
 
         }
 
+        private collideShapes(shapeA: IPhysicsShape, shapeB: IPhysicsShape) {
+
+            if (shapeA.physics.immovable && shapeB.physics.immovable)
+            {
+                return;
+            }
+
+            //  Simple bounds check first
+            if (RectangleUtils.intersects(shapeA.bounds, shapeB.bounds))
+            {
+                //  Collide on the x-axis
+                if (shapeA.bounds.right >= shapeB.bounds.x && shapeA.bounds.right <= shapeB.bounds.right)
+                {
+                    //  The right side of ShapeA hit the left side of ShapeB
+                    this._distance.x = shapeB.bounds.x - shapeA.bounds.right;
+
+                    if (this._distance.x != 0)
+                    {
+                        this._tangent.setTo(-1, 0);
+                        this.separateX(shapeA, shapeB, this._distance, this._tangent);
+                    }
+                }
+                else if (shapeA.bounds.x <= shapeB.bounds.right && shapeA.bounds.x >= shapeB.bounds.x)
+                {
+                    //  The left side of ShapeA hit the right side of ShapeB
+                    this._distance.x = shapeB.bounds.right - shapeA.bounds.x;
+
+                    if (this._distance.x != 0)
+                    {
+                        this._tangent.setTo(1, 0);
+                        this.separateX(shapeA, shapeB, this._distance, this._tangent);
+                    }
+                }
+
+                //  Collide on the y-axis
+                if (shapeA.bounds.y <= shapeB.bounds.bottom && shapeA.bounds.y >= shapeB.bounds.y)
+                {
+                    console.log(shapeA.bounds.y, shapeB.bounds.bottom, shapeB.bounds.y);
+                    //  The top of ShapeA hit the bottom of ShapeB
+                    this._distance.y = shapeB.bounds.bottom - shapeA.bounds.y;
+
+                    if (this._distance.y != 0)
+                    {
+                        this._tangent.setTo(0, 1);
+                        this.separateY(shapeA, shapeB, this._distance, this._tangent);
+                    }
+                }
+                else if (shapeA.bounds.bottom >= shapeB.bounds.y && shapeA.bounds.bottom <= shapeB.bounds.bottom)
+                {
+                    console.log(shapeA.bounds.bottom, shapeB.bounds.y, shapeB.bounds.bottom);
+                    //  The bottom of ShapeA hit the top of ShapeB
+                    this._distance.y = shapeB.bounds.y - shapeA.bounds.bottom;
+
+                    if (this._distance.y != 0)
+                    {
+                        this._tangent.setTo(0, -1);
+                        this.separateY(shapeA, shapeB, this._distance, this._tangent);
+                    }
+                }
+                
+            }
+
+        }
+
         private collideWorld(shape:IPhysicsShape) {
 
             //  Collide on the x-axis
@@ -172,7 +269,7 @@ module Phaser.Physics {
             {
                 //  Hit Left
                 this._tangent.setTo(1, 0);
-                this.separateX(shape, this._distance, this._tangent);
+                this.separateXWall(shape, this._distance, this._tangent);
             }
             else
             {
@@ -183,7 +280,7 @@ module Phaser.Physics {
                     //  Hit Right
                     this._tangent.setTo(-1, 0);
                     this._distance.reverse();
-                    this.separateX(shape, this._distance, this._tangent);
+                    this.separateXWall(shape, this._distance, this._tangent);
                 }
             }
 
@@ -194,7 +291,7 @@ module Phaser.Physics {
             {
                 //  Hit Top
                 this._tangent.setTo(0, 1);
-                this.separateY(shape, this._distance, this._tangent);
+                this.separateYWall(shape, this._distance, this._tangent);
             }
             else
             {
@@ -205,110 +302,151 @@ module Phaser.Physics {
                     //  Hit Bottom
                     this._tangent.setTo(0, -1);
                     this._distance.reverse();
-                    this.separateY(shape, this._distance, this._tangent);
+                    this.separateYWall(shape, this._distance, this._tangent);
                 }
             }
 
         }
 
-        /*
-        private OLDButWorkingcollideWorld(obj:IPhysicsShape) {
+        private separateX(shapeA: IPhysicsShape, shapeB: IPhysicsShape, distance: Vec2, tangent: Vec2) {
 
-            this._distance.setTo(0, 0);
-
-            //  Collide on the x-axis
-            this._distance.x = obj.world.bounds.x - (obj.position.x - obj.bounds.halfWidth);
-            
-            if (0 < this._distance.x)
+            if (tangent.x == 1)
             {
-                //  Hit Left
-                //  Parameter order: px, py (distance), dx, dy (tangent)
-                this._tangent.setTo(1, 0);
-                this.separate(obj, this._distance, this._tangent);
+                console.log('The left side of ShapeA hit the right side of ShapeB', distance.x);
+                shapeA.physics.touching |= Phaser.Types.LEFT;
+                shapeB.physics.touching |= Phaser.Types.RIGHT;
             }
             else
             {
-                this._distance.x = (obj.position.x + obj.bounds.halfWidth) - obj.world.bounds.right;
+                console.log('The right side of ShapeA hit the left side of ShapeB', distance.x);
+                shapeA.physics.touching |= Phaser.Types.RIGHT;
+                shapeB.physics.touching |= Phaser.Types.LEFT;
+            }
 
-                if (0 < this._distance.x)
+            //  collision edges
+            shapeA.oH = tangent.x;
+
+            //  only apply collision response forces if the object is travelling into, and not out of, the collision
+            if (Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0)
+            {
+                //  Apply horizontal bounce
+                if (shapeA.physics.bounce.x > 0)
                 {
-                    //  Hit Right
-                    //  Parameter order: px, py (distance), dx, dy (tangent)
-                    this._tangent.setTo(-1, 0);
-                    this._distance.x = -this._distance.x;
-                    this.separate(obj, this._distance, this._tangent);
+                    shapeA.physics.velocity.x *= -(shapeA.physics.bounce.x);
+                }
+                else
+                {
+                    shapeA.physics.velocity.x = 0;
                 }
             }
 
-            //  Collide on the y-axis
-            this._distance.x = 0;
-            this._distance.y = obj.world.bounds.y - (obj.position.y - obj.bounds.halfHeight);
+            shapeA.position.x += distance.x;
+            shapeA.bounds.x += distance.x;
 
-            if (0 < this._distance.y)
+        }
+
+        private separateY(shapeA: IPhysicsShape, shapeB: IPhysicsShape, distance: Vec2, tangent: Vec2) {
+
+            if (tangent.y == 1)
             {
-                //  Hit Top
-                this._tangent.setTo(0, 1);
-                this.separate(obj, this._distance, this._tangent);
+                console.log('The top of ShapeA hit the bottom of ShapeB', distance.y);
+                shapeA.physics.touching |= Phaser.Types.UP;
+                shapeB.physics.touching |= Phaser.Types.DOWN;
             }
             else
             {
-                this._distance.y = (obj.position.y + obj.bounds.halfHeight) - obj.world.bounds.bottom;
-
-                if (0 < this._distance.y)
-                {
-                    //  Hit Bottom
-                    this._tangent.setTo(0, -1);
-                    this._distance.y = -this._distance.y;
-                    this.separate(obj, this._distance, this._tangent);
-                }
+                console.log('The bottom of ShapeA hit the top of ShapeB', distance.y);
+                shapeA.physics.touching |= Phaser.Types.DOWN;
+                shapeB.physics.touching |= Phaser.Types.UP;
             }
 
-        }
-    */
-
-        private separateX(shape: IPhysicsShape, distance: Vec2, tangent: Vec2) {
-
             //  collision edges
-            shape.oH = tangent.x;
+            shapeA.oV = tangent.y;
 
             //  only apply collision response forces if the object is travelling into, and not out of, the collision
-            if (Vec2Utils.dot(shape.physics.velocity, tangent) < 0)
+            if (Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0)
             {
                 //  Apply horizontal bounce
-                if (shape.physics.bounce.x > 0)
+                if (shapeA.physics.bounce.y > 0)
                 {
-                    shape.physics.velocity.x *= -(shape.physics.bounce.x);
+                    shapeA.physics.velocity.y *= -(shapeA.physics.bounce.y);
                 }
                 else
                 {
-                    shape.physics.velocity.x = 0;
+                    shapeA.physics.velocity.y = 0;
                 }
             }
 
-            shape.position.x += distance.x;
+            shapeA.position.y += distance.y;
+            shapeA.bounds.y += distance.y;
 
         }
 
-        private separateY(shape: IPhysicsShape, distance: Vec2, tangent: Vec2) {
+        private separateXWall(shapeA: IPhysicsShape, distance: Vec2, tangent: Vec2) {
+
+            if (tangent.x == 1)
+            {
+                console.log('The left side of ShapeA hit the right side of ShapeB', distance.x);
+                shapeA.physics.touching |= Phaser.Types.LEFT;
+            }
+            else
+            {
+                console.log('The right side of ShapeA hit the left side of ShapeB', distance.x);
+                shapeA.physics.touching |= Phaser.Types.RIGHT;
+            }
 
             //  collision edges
-            shape.oV = tangent.y;
+            shapeA.oH = tangent.x;
 
             //  only apply collision response forces if the object is travelling into, and not out of, the collision
-            if (Vec2Utils.dot(shape.physics.velocity, tangent) < 0)
+            if (Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0)
             {
                 //  Apply horizontal bounce
-                if (shape.physics.bounce.y > 0)
+                if (shapeA.physics.bounce.x > 0)
                 {
-                    shape.physics.velocity.y *= -(shape.physics.bounce.y);
+                    shapeA.physics.velocity.x *= -(shapeA.physics.bounce.x);
                 }
                 else
                 {
-                    shape.physics.velocity.y = 0;
+                    shapeA.physics.velocity.x = 0;
                 }
             }
 
-            shape.position.y += distance.y;
+            shapeA.position.x += distance.x;
+
+        }
+
+        private separateYWall(shapeA: IPhysicsShape, distance: Vec2, tangent: Vec2) {
+
+            if (tangent.y == 1)
+            {
+                console.log('The top of ShapeA hit the bottom of ShapeB', distance.y);
+                shapeA.physics.touching |= Phaser.Types.UP;
+            }
+            else
+            {
+                console.log('The bottom of ShapeA hit the top of ShapeB', distance.y);
+                shapeA.physics.touching |= Phaser.Types.DOWN;
+            }
+
+            //  collision edges
+            shapeA.oV = tangent.y;
+
+            //  only apply collision response forces if the object is travelling into, and not out of, the collision
+            if (Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0)
+            {
+                //  Apply horizontal bounce
+                if (shapeA.physics.bounce.y > 0)
+                {
+                    shapeA.physics.velocity.y *= -(shapeA.physics.bounce.y);
+                }
+                else
+                {
+                    shapeA.physics.velocity.y = 0;
+                }
+            }
+
+            shapeA.position.y += distance.y;
 
         }
 
@@ -373,6 +511,47 @@ module Phaser.Physics {
 
         }
 
+        /**
+         * Checks for overlaps between two objects using the world QuadTree. Can be GameObject vs. GameObject, GameObject vs. Group or Group vs. Group.
+         * Note: Does not take the objects scrollFactor into account. All overlaps are check in world space.
+         * @param object1 The first GameObject or Group to check. If null the world.group is used.
+         * @param object2 The second GameObject or Group to check.
+         * @param notifyCallback A callback function that is called if the objects overlap. The two objects will be passed to this function in the same order in which you passed them to Collision.overlap.
+         * @param processCallback A callback function that lets you perform additional checks against the two objects if they overlap. If this is set then notifyCallback will only be called if processCallback returns true.
+         * @param context The context in which the callbacks will be called
+         * @returns {boolean} true if the objects overlap, otherwise false.
+         */
+        /*
+        public overlap(object1: Basic = null, object2: Basic = null, notifyCallback = null, processCallback = null, context = null): bool {
+
+            if (object1 == null)
+            {
+                object1 = this._game.world.group;
+            }
+
+            if (object2 == object1)
+            {
+                object2 = null;
+            }
+
+            QuadTree.divisions = this._game.world.worldDivisions;
+
+            var quadTree: QuadTree = new QuadTree(this._game.world.bounds.x, this._game.world.bounds.y, this._game.world.bounds.width, this._game.world.bounds.height);
+
+            quadTree.load(object1, object2, notifyCallback, processCallback, context);
+
+            var result: bool = quadTree.execute();
+
+            quadTree.destroy();
+
+            quadTree = null;
+
+            return result;
+
+        }
+        */
+
+
     }
 
 }
\ No newline at end of file
diff --git a/Phaser/utils/RectangleUtils.ts b/Phaser/utils/RectangleUtils.ts
index e8db1ffb..49e581d8 100644
--- a/Phaser/utils/RectangleUtils.ts
+++ b/Phaser/utils/RectangleUtils.ts
@@ -176,18 +176,7 @@ module Phaser {
         * @return {Boolean} A value of true if the specified object intersects with this Rectangle object; otherwise false.
         **/
         static intersects(a: Rectangle, b: Rectangle, tolerance?: number = 0): bool {
-
-            // ?
-            //return (a.right > b.x) && (a.x < b.right) && (a.bottom > b.y) && (a.y < b.bottom);
             return !(a.left > b.right + tolerance || a.right < b.left - tolerance || a.top > b.bottom + tolerance || a.bottom < b.top - tolerance);
-
-            //if (a.x >= b.right || a.right <= b.x || a.bottom <= b.y || a.y >= b.bottom)
-            //{
-            //    return false;
-            //}
-
-            //return true;
-
         }
 
         /**
diff --git a/Tests/Tests.csproj b/Tests/Tests.csproj
index 24d352bf..ed58efb4 100644
--- a/Tests/Tests.csproj
+++ b/Tests/Tests.csproj
@@ -74,6 +74,14 @@
     <TypeScriptCompile Include="scrollzones\region demo.ts" />
     <TypeScriptCompile Include="scrollzones\parallax.ts" />
     <TypeScriptCompile Include="scrollzones\ballscroller.ts" />
+    <TypeScriptCompile Include="physics\circle 1.ts" />
+    <TypeScriptCompile Include="physics\aabb vs aabb 1.ts" />
+    <Content Include="physics\aabb vs aabb 1.js">
+      <DependentUpon>aabb vs aabb 1.ts</DependentUpon>
+    </Content>
+    <Content Include="physics\circle 1.js">
+      <DependentUpon>circle 1.ts</DependentUpon>
+    </Content>
     <Content Include="scrollzones\ballscroller.js">
       <DependentUpon>ballscroller.ts</DependentUpon>
     </Content>
diff --git a/Tests/phaser.js b/Tests/phaser.js
index 365aa70d..a414e491 100644
--- a/Tests/phaser.js
+++ b/Tests/phaser.js
@@ -2958,15 +2958,8 @@ var Phaser;
         **/
         function intersects(a, b, tolerance) {
             if (typeof tolerance === "undefined") { tolerance = 0; }
-            // ?
-            //return (a.right > b.x) && (a.x < b.right) && (a.bottom > b.y) && (a.y < b.bottom);
             return !(a.left > b.right + tolerance || a.right < b.left - tolerance || a.top > b.bottom + tolerance || a.bottom < b.top - tolerance);
-            //if (a.x >= b.right || a.right <= b.x || a.bottom <= b.y || a.y >= b.bottom)
-            //{
-            //    return false;
-            //}
-            //return true;
-                    };
+        };
         RectangleUtils.intersectsRaw = /**
         * Determines whether the object specified intersects (overlaps) with the given values.
         * @method intersectsRaw
@@ -3262,7 +3255,6 @@ var Phaser;
             if (typeof diameter === "undefined") { diameter = 0; }
             this._diameter = 0;
             this._radius = 0;
-            //private _pos: Vec2;
             /**
             * The x coordinate of the center of the circle
             * @property x
@@ -5858,6 +5850,7 @@ var Phaser;
 (function (Phaser) {
     /// <reference path="../Game.ts" />
     /// <reference path="IPhysicsShape.ts" />
+    /// <reference path="../utils/RectangleUtils.ts" />
     /**
     * Phaser - PhysicsManager
     *
@@ -5883,22 +5876,41 @@ var Phaser;
                 this._objects.push(shape);
                 return shape;
             };
+            PhysicsManager.prototype.remove = function (shape) {
+                this._length = this._objects.length;
+                for(var i = 0; i < this._length; i++) {
+                    if(this._objects[i] === shape) {
+                        this._objects[i] = null;
+                    }
+                }
+            };
             PhysicsManager.prototype.update = function () {
                 this._length = this._objects.length;
                 for(var i = 0; i < this._length; i++) {
-                    this._objects[i].preUpdate();
-                    this.updateMotion(this._objects[i]);
-                    this.collideWorld(this._objects[i]);
+                    if(this._objects[i]) {
+                        this._objects[i].preUpdate();
+                        this.updateMotion(this._objects[i]);
+                        this.collideWorld(this._objects[i]);
+                        if(this._objects[i].physics.immovable == false) {
+                            for(var x = 0; x < this._length; x++) {
+                                if(this._objects[x] !== this._objects[i]) {
+                                    this.collideShapes(this._objects[i], this._objects[x]);
+                                }
+                            }
+                        }
+                    }
                 }
             };
             PhysicsManager.prototype.render = function () {
                 //  iterate through the objects here, updating and colliding
                 for(var i = 0; i < this._length; i++) {
-                    this._objects[i].render(this.game.stage.context);
+                    if(this._objects[i]) {
+                        this._objects[i].render(this.game.stage.context);
+                    }
                 }
             };
-            PhysicsManager.prototype.updateMotion = function (obj) {
-                if(obj.physics.moves == false) {
+            PhysicsManager.prototype.updateMotion = function (shape) {
+                if(shape.physics.moves == false) {
                     return;
                 }
                 /*
@@ -5907,16 +5919,16 @@ var Phaser;
                 this._angle += this.angularVelocity * this._game.time.elapsed;
                 this.angularVelocity += velocityDelta;
                 */
-                this._velocityDelta = (this.computeVelocity(obj.physics.velocity.x, obj.physics.gravity.x, obj.physics.acceleration.x, obj.physics.drag.x) - obj.physics.velocity.x) / 2;
-                obj.physics.velocity.x += this._velocityDelta;
-                this._delta = obj.physics.velocity.x * this.game.time.elapsed;
-                obj.physics.velocity.x += this._velocityDelta;
-                obj.position.x += this._delta;
-                this._velocityDelta = (this.computeVelocity(obj.physics.velocity.y, obj.physics.gravity.y, obj.physics.acceleration.y, obj.physics.drag.y) - obj.physics.velocity.y) / 2;
-                obj.physics.velocity.y += this._velocityDelta;
-                this._delta = obj.physics.velocity.y * this.game.time.elapsed;
-                obj.physics.velocity.y += this._velocityDelta;
-                obj.position.y += this._delta;
+                this._velocityDelta = (this.computeVelocity(shape.physics.velocity.x, shape.physics.gravity.x, shape.physics.acceleration.x, shape.physics.drag.x) - shape.physics.velocity.x) / 2;
+                shape.physics.velocity.x += this._velocityDelta;
+                this._delta = shape.physics.velocity.x * this.game.time.elapsed;
+                shape.physics.velocity.x += this._velocityDelta;
+                shape.position.x += this._delta;
+                this._velocityDelta = (this.computeVelocity(shape.physics.velocity.y, shape.physics.gravity.y, shape.physics.acceleration.y, shape.physics.drag.y) - shape.physics.velocity.y) / 2;
+                shape.physics.velocity.y += this._velocityDelta;
+                this._delta = shape.physics.velocity.y * this.game.time.elapsed;
+                shape.physics.velocity.y += this._velocityDelta;
+                shape.position.y += this._delta;
             };
             PhysicsManager.prototype.computeVelocity = /**
             * A tween-like function that takes a starting velocity and some other factors and returns an altered velocity.
@@ -5955,119 +5967,169 @@ var Phaser;
                 }
                 return velocity;
             };
-            PhysicsManager.prototype.collideWorld = function (obj) {
+            PhysicsManager.prototype.collideShapes = function (shapeA, shapeB) {
+                if(shapeA.physics.immovable && shapeB.physics.immovable) {
+                    return;
+                }
+                //  Simple bounds check first
+                if(Phaser.RectangleUtils.intersects(shapeA.bounds, shapeB.bounds)) {
+                    //  Collide on the x-axis
+                    if(shapeA.bounds.right >= shapeB.bounds.x && shapeA.bounds.right <= shapeB.bounds.right) {
+                        //  The right side of ShapeA hit the left side of ShapeB
+                        this._distance.x = shapeB.bounds.x - shapeA.bounds.right;
+                        if(this._distance.x != 0) {
+                            this._tangent.setTo(-1, 0);
+                            this.separateX(shapeA, shapeB, this._distance, this._tangent);
+                        }
+                    } else if(shapeA.bounds.x <= shapeB.bounds.right && shapeA.bounds.x >= shapeB.bounds.x) {
+                        //  The left side of ShapeA hit the right side of ShapeB
+                        this._distance.x = shapeB.bounds.right - shapeA.bounds.x;
+                        if(this._distance.x != 0) {
+                            this._tangent.setTo(1, 0);
+                            this.separateX(shapeA, shapeB, this._distance, this._tangent);
+                        }
+                    }
+                    //  Collide on the y-axis
+                    if(shapeA.bounds.y <= shapeB.bounds.bottom && shapeA.bounds.y >= shapeB.bounds.y) {
+                        console.log(shapeA.bounds.y, shapeB.bounds.bottom, shapeB.bounds.y);
+                        //  The top of ShapeA hit the bottom of ShapeB
+                        this._distance.y = shapeB.bounds.bottom - shapeA.bounds.y;
+                        if(this._distance.y != 0) {
+                            this._tangent.setTo(0, 1);
+                            this.separateY(shapeA, shapeB, this._distance, this._tangent);
+                        }
+                    } else if(shapeA.bounds.bottom >= shapeB.bounds.y && shapeA.bounds.bottom <= shapeB.bounds.bottom) {
+                        console.log(shapeA.bounds.bottom, shapeB.bounds.y, shapeB.bounds.bottom);
+                        //  The bottom of ShapeA hit the top of ShapeB
+                        this._distance.y = shapeB.bounds.y - shapeA.bounds.bottom;
+                        if(this._distance.y != 0) {
+                            this._tangent.setTo(0, -1);
+                            this.separateY(shapeA, shapeB, this._distance, this._tangent);
+                        }
+                    }
+                }
+            };
+            PhysicsManager.prototype.collideWorld = function (shape) {
                 //  Collide on the x-axis
-                this._distance.x = obj.world.bounds.x - (obj.position.x - obj.bounds.halfWidth);
+                this._distance.x = shape.world.bounds.x - (shape.position.x - shape.bounds.halfWidth);
                 if(0 < this._distance.x) {
                     //  Hit Left
                     this._tangent.setTo(1, 0);
-                    this.separateX(obj, this._distance, this._tangent);
+                    this.separateXWall(shape, this._distance, this._tangent);
                 } else {
-                    this._distance.x = (obj.position.x + obj.bounds.halfWidth) - obj.world.bounds.right;
+                    this._distance.x = (shape.position.x + shape.bounds.halfWidth) - shape.world.bounds.right;
                     if(0 < this._distance.x) {
                         //  Hit Right
                         this._tangent.setTo(-1, 0);
                         this._distance.reverse();
-                        this.separateX(obj, this._distance, this._tangent);
+                        this.separateXWall(shape, this._distance, this._tangent);
                     }
                 }
                 //  Collide on the y-axis
-                this._distance.y = obj.world.bounds.y - (obj.position.y - obj.bounds.halfHeight);
+                this._distance.y = shape.world.bounds.y - (shape.position.y - shape.bounds.halfHeight);
                 if(0 < this._distance.y) {
                     //  Hit Top
                     this._tangent.setTo(0, 1);
-                    this.separateY(obj, this._distance, this._tangent);
+                    this.separateYWall(shape, this._distance, this._tangent);
                 } else {
-                    this._distance.y = (obj.position.y + obj.bounds.halfHeight) - obj.world.bounds.bottom;
+                    this._distance.y = (shape.position.y + shape.bounds.halfHeight) - shape.world.bounds.bottom;
                     if(0 < this._distance.y) {
                         //  Hit Bottom
                         this._tangent.setTo(0, -1);
                         this._distance.reverse();
-                        this.separateY(obj, this._distance, this._tangent);
+                        this.separateYWall(shape, this._distance, this._tangent);
                     }
                 }
             };
-            PhysicsManager.prototype.separateX = /*
-            private OLDButWorkingcollideWorld(obj:IPhysicsShape) {
-            
-            this._distance.setTo(0, 0);
-            
-            //  Collide on the x-axis
-            this._distance.x = obj.world.bounds.x - (obj.position.x - obj.bounds.halfWidth);
-            
-            if (0 < this._distance.x)
-            {
-            //  Hit Left
-            //  Parameter order: px, py (distance), dx, dy (tangent)
-            this._tangent.setTo(1, 0);
-            this.separate(obj, this._distance, this._tangent);
-            }
-            else
-            {
-            this._distance.x = (obj.position.x + obj.bounds.halfWidth) - obj.world.bounds.right;
-            
-            if (0 < this._distance.x)
-            {
-            //  Hit Right
-            //  Parameter order: px, py (distance), dx, dy (tangent)
-            this._tangent.setTo(-1, 0);
-            this._distance.x = -this._distance.x;
-            this.separate(obj, this._distance, this._tangent);
-            }
-            }
-            
-            //  Collide on the y-axis
-            this._distance.x = 0;
-            this._distance.y = obj.world.bounds.y - (obj.position.y - obj.bounds.halfHeight);
-            
-            if (0 < this._distance.y)
-            {
-            //  Hit Top
-            this._tangent.setTo(0, 1);
-            this.separate(obj, this._distance, this._tangent);
-            }
-            else
-            {
-            this._distance.y = (obj.position.y + obj.bounds.halfHeight) - obj.world.bounds.bottom;
-            
-            if (0 < this._distance.y)
-            {
-            //  Hit Bottom
-            this._tangent.setTo(0, -1);
-            this._distance.y = -this._distance.y;
-            this.separate(obj, this._distance, this._tangent);
-            }
-            }
-            
-            }
-            */
-            function (shape, distance, tangent) {
+            PhysicsManager.prototype.separateX = function (shapeA, shapeB, distance, tangent) {
+                if(tangent.x == 1) {
+                    console.log('The left side of ShapeA hit the right side of ShapeB', distance.x);
+                    shapeA.physics.touching |= Phaser.Types.LEFT;
+                    shapeB.physics.touching |= Phaser.Types.RIGHT;
+                } else {
+                    console.log('The right side of ShapeA hit the left side of ShapeB', distance.x);
+                    shapeA.physics.touching |= Phaser.Types.RIGHT;
+                    shapeB.physics.touching |= Phaser.Types.LEFT;
+                }
                 //  collision edges
-                shape.oH = tangent.x;
+                shapeA.oH = tangent.x;
                 //  only apply collision response forces if the object is travelling into, and not out of, the collision
-                if(Phaser.Vec2Utils.dot(shape.physics.velocity, tangent) < 0) {
+                if(Phaser.Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0) {
                     //  Apply horizontal bounce
-                    if(shape.physics.bounce.x > 0) {
-                        shape.physics.velocity.x *= -(shape.physics.bounce.x);
+                    if(shapeA.physics.bounce.x > 0) {
+                        shapeA.physics.velocity.x *= -(shapeA.physics.bounce.x);
                     } else {
-                        shape.physics.velocity.x = 0;
+                        shapeA.physics.velocity.x = 0;
                     }
                 }
-                shape.position.x += distance.x;
+                shapeA.position.x += distance.x;
+                shapeA.bounds.x += distance.x;
             };
-            PhysicsManager.prototype.separateY = function (shape, distance, tangent) {
+            PhysicsManager.prototype.separateY = function (shapeA, shapeB, distance, tangent) {
+                if(tangent.y == 1) {
+                    console.log('The top of ShapeA hit the bottom of ShapeB', distance.y);
+                    shapeA.physics.touching |= Phaser.Types.UP;
+                    shapeB.physics.touching |= Phaser.Types.DOWN;
+                } else {
+                    console.log('The bottom of ShapeA hit the top of ShapeB', distance.y);
+                    shapeA.physics.touching |= Phaser.Types.DOWN;
+                    shapeB.physics.touching |= Phaser.Types.UP;
+                }
                 //  collision edges
-                shape.oV = tangent.y;
+                shapeA.oV = tangent.y;
                 //  only apply collision response forces if the object is travelling into, and not out of, the collision
-                if(Phaser.Vec2Utils.dot(shape.physics.velocity, tangent) < 0) {
+                if(Phaser.Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0) {
                     //  Apply horizontal bounce
-                    if(shape.physics.bounce.y > 0) {
-                        shape.physics.velocity.y *= -(shape.physics.bounce.y);
+                    if(shapeA.physics.bounce.y > 0) {
+                        shapeA.physics.velocity.y *= -(shapeA.physics.bounce.y);
                     } else {
-                        shape.physics.velocity.y = 0;
+                        shapeA.physics.velocity.y = 0;
                     }
                 }
-                shape.position.y += distance.y;
+                shapeA.position.y += distance.y;
+                shapeA.bounds.y += distance.y;
+            };
+            PhysicsManager.prototype.separateXWall = function (shapeA, distance, tangent) {
+                if(tangent.x == 1) {
+                    console.log('The left side of ShapeA hit the right side of ShapeB', distance.x);
+                    shapeA.physics.touching |= Phaser.Types.LEFT;
+                } else {
+                    console.log('The right side of ShapeA hit the left side of ShapeB', distance.x);
+                    shapeA.physics.touching |= Phaser.Types.RIGHT;
+                }
+                //  collision edges
+                shapeA.oH = tangent.x;
+                //  only apply collision response forces if the object is travelling into, and not out of, the collision
+                if(Phaser.Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0) {
+                    //  Apply horizontal bounce
+                    if(shapeA.physics.bounce.x > 0) {
+                        shapeA.physics.velocity.x *= -(shapeA.physics.bounce.x);
+                    } else {
+                        shapeA.physics.velocity.x = 0;
+                    }
+                }
+                shapeA.position.x += distance.x;
+            };
+            PhysicsManager.prototype.separateYWall = function (shapeA, distance, tangent) {
+                if(tangent.y == 1) {
+                    console.log('The top of ShapeA hit the bottom of ShapeB', distance.y);
+                    shapeA.physics.touching |= Phaser.Types.UP;
+                } else {
+                    console.log('The bottom of ShapeA hit the top of ShapeB', distance.y);
+                    shapeA.physics.touching |= Phaser.Types.DOWN;
+                }
+                //  collision edges
+                shapeA.oV = tangent.y;
+                //  only apply collision response forces if the object is travelling into, and not out of, the collision
+                if(Phaser.Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0) {
+                    //  Apply horizontal bounce
+                    if(shapeA.physics.bounce.y > 0) {
+                        shapeA.physics.velocity.y *= -(shapeA.physics.bounce.y);
+                    } else {
+                        shapeA.physics.velocity.y = 0;
+                    }
+                }
+                shapeA.position.y += distance.y;
             };
             PhysicsManager.prototype.separate = function (shape, distance, tangent) {
                 //  collision edges
@@ -6111,7 +6173,46 @@ var Phaser;
             return PhysicsManager;
         })();
         Physics.PhysicsManager = PhysicsManager;        
-    })(Phaser.Physics || (Phaser.Physics = {}));
+        /**
+        * Checks for overlaps between two objects using the world QuadTree. Can be GameObject vs. GameObject, GameObject vs. Group or Group vs. Group.
+        * Note: Does not take the objects scrollFactor into account. All overlaps are check in world space.
+        * @param object1 The first GameObject or Group to check. If null the world.group is used.
+        * @param object2 The second GameObject or Group to check.
+        * @param notifyCallback A callback function that is called if the objects overlap. The two objects will be passed to this function in the same order in which you passed them to Collision.overlap.
+        * @param processCallback A callback function that lets you perform additional checks against the two objects if they overlap. If this is set then notifyCallback will only be called if processCallback returns true.
+        * @param context The context in which the callbacks will be called
+        * @returns {boolean} true if the objects overlap, otherwise false.
+        */
+        /*
+        public overlap(object1: Basic = null, object2: Basic = null, notifyCallback = null, processCallback = null, context = null): bool {
+        
+        if (object1 == null)
+        {
+        object1 = this._game.world.group;
+        }
+        
+        if (object2 == object1)
+        {
+        object2 = null;
+        }
+        
+        QuadTree.divisions = this._game.world.worldDivisions;
+        
+        var quadTree: QuadTree = new QuadTree(this._game.world.bounds.x, this._game.world.bounds.y, this._game.world.bounds.width, this._game.world.bounds.height);
+        
+        quadTree.load(object1, object2, notifyCallback, processCallback, context);
+        
+        var result: bool = quadTree.execute();
+        
+        quadTree.destroy();
+        
+        quadTree = null;
+        
+        return result;
+        
+        }
+        */
+            })(Phaser.Physics || (Phaser.Physics = {}));
     var Physics = Phaser.Physics;
 })(Phaser || (Phaser = {}));
 var Phaser;
@@ -6144,6 +6245,8 @@ var Phaser;
             }
             AABB.prototype.preUpdate = function () {
                 this.oldPosition.copyFrom(this.position);
+                this.bounds.x = this.position.x - this.bounds.halfWidth;
+                this.bounds.y = this.position.y - this.bounds.halfHeight;
                 if(this.sprite) {
                     this.position.setTo((this.sprite.x + this.bounds.halfWidth) + this.offset.x, (this.sprite.y + this.bounds.halfHeight) + this.offset.y);
                     //  Update scale / dimensions
@@ -6155,14 +6258,19 @@ var Phaser;
                 }
             };
             AABB.prototype.update = function () {
-                this.bounds.x = this.position.x;
-                this.bounds.y = this.position.y;
-            };
+                //this.bounds.x = this.position.x;
+                //this.bounds.y = this.position.y;
+                            };
             AABB.prototype.setSize = function (width, height) {
                 this.bounds.width = width;
                 this.bounds.height = height;
             };
             AABB.prototype.render = function (context) {
+                //context.beginPath();
+                //context.strokeStyle = 'rgb(255,255,0)';
+                //context.strokeRect(this.bounds.x, this.bounds.y, this.bounds.width, this.bounds.height);
+                //context.stroke();
+                //context.closePath();
                 context.beginPath();
                 context.strokeStyle = 'rgb(0,255,0)';
                 context.strokeRect(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight, this.bounds.width, this.bounds.height);
@@ -6171,14 +6279,14 @@ var Phaser;
                 //  center point
                 context.fillStyle = 'rgb(0,255,0)';
                 context.fillRect(this.position.x, this.position.y, 2, 2);
-                if(this.oH == 1) {
+                if(this.physics.touching == Phaser.Types.LEFT) {
                     context.beginPath();
                     context.strokeStyle = 'rgb(255,0,0)';
                     context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
                     context.lineTo(this.position.x - this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
                     context.stroke();
                     context.closePath();
-                } else if(this.oH == -1) {
+                } else if(this.physics.touching == Phaser.Types.RIGHT) {
                     context.beginPath();
                     context.strokeStyle = 'rgb(255,0,0)';
                     context.moveTo(this.position.x + this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
@@ -6186,14 +6294,14 @@ var Phaser;
                     context.stroke();
                     context.closePath();
                 }
-                if(this.oV == 1) {
+                if(this.physics.touching == Phaser.Types.UP) {
                     context.beginPath();
                     context.strokeStyle = 'rgb(255,0,0)';
                     context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
                     context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
                     context.stroke();
                     context.closePath();
-                } else if(this.oV == -1) {
+                } else if(this.physics.touching == Phaser.Types.DOWN) {
                     context.beginPath();
                     context.strokeStyle = 'rgb(255,0,0)';
                     context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
@@ -6439,6 +6547,15 @@ var Phaser;
         Types.GEOM_RECTANGLE = 2;
         Types.GEOM_LINE = 3;
         Types.GEOM_POLYGON = 4;
+        Types.LEFT = 0x0001;
+        Types.RIGHT = 0x0010;
+        Types.UP = 0x0100;
+        Types.DOWN = 0x1000;
+        Types.NONE = 0;
+        Types.CEILING = Types.UP;
+        Types.FLOOR = Types.DOWN;
+        Types.WALL = Types.LEFT | Types.RIGHT;
+        Types.ANY = Types.LEFT | Types.RIGHT | Types.UP | Types.DOWN;
         return Types;
     })();
     Phaser.Types = Types;    
@@ -12132,17 +12249,120 @@ var Phaser;
     Phaser.Vec2 = Vec2;    
 })(Phaser || (Phaser = {}));
 var Phaser;
+(function (Phaser) {
+    /// <reference path="../Game.ts" />
+    /// <reference path="../core/Rectangle.ts" />
+    /// <reference path="../math/Vec2Utils.ts" />
+    /// <reference path="PhysicsManager.ts" />
+    /// <reference path="IPhysicsShape.ts" />
+    /**
+    * Phaser - Physics - Circle
+    */
+    (function (Physics) {
+        var Circle = (function () {
+            function Circle(game, sprite, x, y, diameter) {
+                this.game = game;
+                this.world = game.world.physics;
+                if(sprite !== null) {
+                    this.sprite = sprite;
+                    this.scale = Phaser.Vec2Utils.clone(this.sprite.scale);
+                } else {
+                    this.sprite = null;
+                    this.physics = null;
+                    this.scale = new Phaser.Vec2(1, 1);
+                }
+                this.radius = diameter / 2;
+                this.bounds = new Phaser.Rectangle(x + Math.round(diameter / 2), y + Math.round(diameter / 2), diameter, diameter);
+                this.position = new Phaser.Vec2(x + this.bounds.halfWidth, y + this.bounds.halfHeight);
+                this.oldPosition = new Phaser.Vec2(x + this.bounds.halfWidth, y + this.bounds.halfHeight);
+                this.offset = new Phaser.Vec2(0, 0);
+            }
+            Circle.prototype.preUpdate = function () {
+                this.oldPosition.copyFrom(this.position);
+                if(this.sprite) {
+                    this.position.setTo((this.sprite.x + this.bounds.halfWidth) + this.offset.x, (this.sprite.y + this.bounds.halfHeight) + this.offset.y);
+                    //  Update scale / dimensions
+                    if(Phaser.Vec2Utils.equals(this.scale, this.sprite.scale) == false) {
+                        this.scale.copyFrom(this.sprite.scale);
+                        //  needs to be radius based (+ square)
+                        //this.bounds.width = this.sprite.width;
+                        //this.bounds.height = this.sprite.height;
+                                            }
+                }
+            };
+            Circle.prototype.update = function () {
+                this.bounds.x = this.position.x;
+                this.bounds.y = this.position.y;
+            };
+            Circle.prototype.setSize = function (width, height) {
+                this.bounds.width = width;
+                this.bounds.height = height;
+            };
+            Circle.prototype.render = function (context) {
+                context.beginPath();
+                context.strokeStyle = 'rgb(0,255,0)';
+                context.arc(this.position.x, this.position.y, this.radius, 0, Math.PI * 2);
+                context.stroke();
+                context.closePath();
+                //  center point
+                context.fillStyle = 'rgb(0,255,0)';
+                context.fillRect(this.position.x, this.position.y, 2, 2);
+                if(this.oH == 1) {
+                    context.beginPath();
+                    context.strokeStyle = 'rgb(255,0,0)';
+                    context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                    context.lineTo(this.position.x - this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                    context.stroke();
+                    context.closePath();
+                } else if(this.oH == -1) {
+                    context.beginPath();
+                    context.strokeStyle = 'rgb(255,0,0)';
+                    context.moveTo(this.position.x + this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                    context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                    context.stroke();
+                    context.closePath();
+                }
+                if(this.oV == 1) {
+                    context.beginPath();
+                    context.strokeStyle = 'rgb(255,0,0)';
+                    context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                    context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                    context.stroke();
+                    context.closePath();
+                } else if(this.oV == -1) {
+                    context.beginPath();
+                    context.strokeStyle = 'rgb(255,0,0)';
+                    context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                    context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                    context.stroke();
+                    context.closePath();
+                }
+            };
+            return Circle;
+        })();
+        Physics.Circle = Circle;        
+    })(Phaser.Physics || (Phaser.Physics = {}));
+    var Physics = Phaser.Physics;
+})(Phaser || (Phaser = {}));
+var Phaser;
 (function (Phaser) {
     /// <reference path="../../core/Vec2.ts" />
     /// <reference path="../../core/Point.ts" />
     /// <reference path="../../math/Vec2Utils.ts" />
     /// <reference path="../../physics/AABB.ts" />
+    /// <reference path="../../physics/Circle.ts" />
+    /// <reference path="../../physics/IPhysicsShape.ts" />
     /**
     * Phaser - Components - Physics
     */
     (function (Components) {
         var Physics = (function () {
             function Physics(parent) {
+                /**
+                * Whether this object will be moved by impacts with other objects or not.
+                * @type {boolean}
+                */
+                this.immovable = false;
                 /**
                 * Set this to false if you want to skip the automatic movement stuff
                 * @type {boolean}
@@ -12156,13 +12376,19 @@ var Phaser;
                 this.friction = Phaser.Vec2Utils.clone(this.game.world.physics.friction);
                 this.velocity = new Phaser.Vec2();
                 this.acceleration = new Phaser.Vec2();
+                this.touching = Phaser.Types.NONE;
                 this.shape = this.game.world.physics.add(new Phaser.Physics.AABB(this.game, this._sprite, this._sprite.x, this._sprite.y, this._sprite.width, this._sprite.height));
             }
+            Physics.prototype.setCircle = function (diameter) {
+                this.game.world.physics.remove(this.shape);
+                this.shape = this.game.world.physics.add(new Phaser.Physics.Circle(this.game, this._sprite, this._sprite.x, this._sprite.y, diameter));
+                this._sprite.physics.shape.physics = this;
+            };
             Physics.prototype.update = /**
             * Internal function for updating the position and speed of this object.
             */
             function () {
-                if(this.moves) {
+                if(this.moves && this.shape) {
                     this._sprite.x = (this.shape.position.x - this.shape.bounds.halfWidth) - this.shape.offset.x;
                     this._sprite.y = (this.shape.position.y - this.shape.bounds.halfHeight) - this.shape.offset.y;
                 }
@@ -12177,7 +12403,8 @@ var Phaser;
                 if (typeof color === "undefined") { color = 'rgb(255,255,255)'; }
                 this._sprite.texture.context.fillStyle = color;
                 this._sprite.texture.context.fillText('Sprite: (' + this._sprite.frameBounds.width + ' x ' + this._sprite.frameBounds.height + ')', x, y);
-                this._sprite.texture.context.fillText('x: ' + this._sprite.frameBounds.x.toFixed(1) + ' y: ' + this._sprite.frameBounds.y.toFixed(1) + ' rotation: ' + this._sprite.rotation.toFixed(1), x, y + 14);
+                //this._sprite.texture.context.fillText('x: ' + this._sprite.frameBounds.x.toFixed(1) + ' y: ' + this._sprite.frameBounds.y.toFixed(1) + ' rotation: ' + this._sprite.rotation.toFixed(1), x, y + 14);
+                this._sprite.texture.context.fillText('x: ' + this.shape.bounds.x.toFixed(1) + ' y: ' + this.shape.bounds.y.toFixed(1) + ' rotation: ' + this._sprite.rotation.toFixed(1), x, y + 14);
                 this._sprite.texture.context.fillText('vx: ' + this.velocity.x.toFixed(1) + ' vy: ' + this.velocity.y.toFixed(1), x, y + 28);
                 this._sprite.texture.context.fillText('ax: ' + this.acceleration.x.toFixed(1) + ' ay: ' + this.acceleration.y.toFixed(1), x, y + 42);
             };
diff --git a/Tests/physics/aabb vs aabb 1.js b/Tests/physics/aabb vs aabb 1.js
new file mode 100644
index 00000000..10a698ff
--- /dev/null
+++ b/Tests/physics/aabb vs aabb 1.js	
@@ -0,0 +1,47 @@
+/// <reference path="../../Phaser/Game.ts" />
+(function () {
+    var game = new Phaser.Game(this, 'game', 800, 600, init, create, update, render);
+    function init() {
+        //  Using Phasers asset loader we load up a PNG from the assets folder
+        game.loader.addImageFile('atari', 'assets/sprites/atari800xl.png');
+        game.loader.addImageFile('card', 'assets/sprites/mana_card.png');
+        game.loader.load();
+    }
+    var atari;
+    var card;
+    function create() {
+        //atari = game.add.sprite(350, 100, 'atari');
+        //atari = game.add.sprite(350, 500, 'atari');
+        atari = game.add.sprite(0, 310, 'atari');
+        card = game.add.sprite(400, 300, 'card');
+        card.physics.immovable = true;
+        //atari.texture.alpha = 0.5;
+        //atari.scale.setTo(1.5, 1.5);
+        //atari.physics.shape.setSize(150, 50);
+        //atari.physics.shape.offset.setTo(50, 25);
+        //atari.physics.gravity.setTo(0, 2);
+        atari.physics.bounce.setTo(0.7, 0.7);
+        //atari.physics.drag.setTo(10, 10);
+        //card.physics.bounce.setTo(0.7, 0.7);
+        //card.physics.velocity.x = -50;
+            }
+    function update() {
+        atari.physics.acceleration.x = 0;
+        atari.physics.acceleration.y = 0;
+        if(game.input.keyboard.isDown(Phaser.Keyboard.LEFT)) {
+            atari.physics.acceleration.x = -150;
+        } else if(game.input.keyboard.isDown(Phaser.Keyboard.RIGHT)) {
+            atari.physics.acceleration.x = 150;
+        }
+        if(game.input.keyboard.isDown(Phaser.Keyboard.UP)) {
+            atari.physics.acceleration.y = -150;
+        } else if(game.input.keyboard.isDown(Phaser.Keyboard.DOWN)) {
+            atari.physics.acceleration.y = 150;
+        }
+        //  collide?
+            }
+    function render() {
+        atari.physics.renderDebugInfo(16, 16);
+        card.physics.renderDebugInfo(200, 16);
+    }
+})();
diff --git a/Tests/physics/aabb vs aabb 1.ts b/Tests/physics/aabb vs aabb 1.ts
new file mode 100644
index 00000000..68cf8e3e
--- /dev/null
+++ b/Tests/physics/aabb vs aabb 1.ts	
@@ -0,0 +1,77 @@
+/// <reference path="../../Phaser/Game.ts" />
+
+(function () {
+
+    var game = new Phaser.Game(this, 'game', 800, 600, init, create, update, render);
+
+    function init() {
+
+        //  Using Phasers asset loader we load up a PNG from the assets folder
+        game.loader.addImageFile('atari', 'assets/sprites/atari800xl.png');
+        game.loader.addImageFile('card', 'assets/sprites/mana_card.png');
+        game.loader.load();
+
+    }
+
+    var atari: Phaser.Sprite;
+    var card: Phaser.Sprite;
+
+    function create() {
+
+        //atari = game.add.sprite(350, 100, 'atari');
+        //atari = game.add.sprite(350, 500, 'atari');
+        atari = game.add.sprite(0, 310, 'atari');
+        card = game.add.sprite(400, 300, 'card');
+
+        card.physics.immovable = true;
+
+        //atari.texture.alpha = 0.5;
+        //atari.scale.setTo(1.5, 1.5);
+
+        //atari.physics.shape.setSize(150, 50);
+        //atari.physics.shape.offset.setTo(50, 25);
+
+        //atari.physics.gravity.setTo(0, 2);
+        atari.physics.bounce.setTo(0.7, 0.7);
+        //atari.physics.drag.setTo(10, 10);
+
+        //card.physics.bounce.setTo(0.7, 0.7);
+        //card.physics.velocity.x = -50;
+
+    }
+
+    function update() {
+
+        atari.physics.acceleration.x = 0;
+        atari.physics.acceleration.y = 0;
+
+        if (game.input.keyboard.isDown(Phaser.Keyboard.LEFT))
+        {
+            atari.physics.acceleration.x = -150;
+        }
+        else if (game.input.keyboard.isDown(Phaser.Keyboard.RIGHT))
+        {
+            atari.physics.acceleration.x = 150;
+        }
+
+        if (game.input.keyboard.isDown(Phaser.Keyboard.UP))
+        {
+            atari.physics.acceleration.y = -150;
+        }
+        else if (game.input.keyboard.isDown(Phaser.Keyboard.DOWN))
+        {
+            atari.physics.acceleration.y = 150;
+        }
+
+        //  collide?
+
+    }
+
+    function render() {
+
+        atari.physics.renderDebugInfo(16, 16);
+        card.physics.renderDebugInfo(200, 16);
+
+    }
+
+})();
diff --git a/Tests/physics/circle 1.js b/Tests/physics/circle 1.js
new file mode 100644
index 00000000..0d0bc7fd
--- /dev/null
+++ b/Tests/physics/circle 1.js	
@@ -0,0 +1,38 @@
+/// <reference path="../../Phaser/Game.ts" />
+(function () {
+    var game = new Phaser.Game(this, 'game', 800, 600, init, create, update, render);
+    function init() {
+        //  Using Phasers asset loader we load up a PNG from the assets folder
+        game.loader.addImageFile('atari', 'assets/sprites/mushroom2.png');
+        game.loader.load();
+    }
+    var atari;
+    function create() {
+        atari = game.add.sprite(200, 300, 'atari');
+        atari.texture.alpha = 0.5;
+        //atari.scale.setTo(1.5, 1.5);
+        atari.physics.setCircle(50);
+        //atari.physics.shape.setSize(150, 50);
+        atari.physics.shape.offset.setTo(7, 5);
+        //atari.physics.gravity.setTo(0, 2);
+        atari.physics.bounce.setTo(0.7, 0.7);
+        atari.physics.drag.setTo(10, 10);
+    }
+    function update() {
+        atari.physics.acceleration.x = 0;
+        atari.physics.acceleration.y = 0;
+        if(game.input.keyboard.isDown(Phaser.Keyboard.LEFT)) {
+            atari.physics.acceleration.x = -150;
+        } else if(game.input.keyboard.isDown(Phaser.Keyboard.RIGHT)) {
+            atari.physics.acceleration.x = 150;
+        }
+        if(game.input.keyboard.isDown(Phaser.Keyboard.UP)) {
+            atari.physics.acceleration.y = -150;
+        } else if(game.input.keyboard.isDown(Phaser.Keyboard.DOWN)) {
+            atari.physics.acceleration.y = 150;
+        }
+    }
+    function render() {
+        atari.physics.renderDebugInfo(16, 16);
+    }
+})();
diff --git a/Tests/physics/circle 1.ts b/Tests/physics/circle 1.ts
new file mode 100644
index 00000000..556dc117
--- /dev/null
+++ b/Tests/physics/circle 1.ts	
@@ -0,0 +1,65 @@
+/// <reference path="../../Phaser/Game.ts" />
+
+(function () {
+
+    var game = new Phaser.Game(this, 'game', 800, 600, init, create, update, render);
+
+    function init() {
+
+        //  Using Phasers asset loader we load up a PNG from the assets folder
+        game.loader.addImageFile('atari', 'assets/sprites/mushroom2.png');
+        game.loader.load();
+
+    }
+
+    var atari: Phaser.Sprite;
+
+    function create() {
+
+        atari = game.add.sprite(200, 300, 'atari');
+        atari.texture.alpha = 0.5;
+        //atari.scale.setTo(1.5, 1.5);
+
+        atari.physics.setCircle(50);
+
+        //atari.physics.shape.setSize(150, 50);
+        atari.physics.shape.offset.setTo(7, 5);
+
+        //atari.physics.gravity.setTo(0, 2);
+        atari.physics.bounce.setTo(0.7, 0.7);
+        atari.physics.drag.setTo(10, 10);
+
+    }
+
+    function update() {
+
+        atari.physics.acceleration.x = 0;
+        atari.physics.acceleration.y = 0;
+
+        if (game.input.keyboard.isDown(Phaser.Keyboard.LEFT))
+        {
+            atari.physics.acceleration.x = -150;
+        }
+        else if (game.input.keyboard.isDown(Phaser.Keyboard.RIGHT))
+        {
+            atari.physics.acceleration.x = 150;
+        }
+
+        if (game.input.keyboard.isDown(Phaser.Keyboard.UP))
+        {
+            atari.physics.acceleration.y = -150;
+        }
+        else if (game.input.keyboard.isDown(Phaser.Keyboard.DOWN))
+        {
+            atari.physics.acceleration.y = 150;
+        }
+
+    }
+
+    function render() {
+
+        atari.physics.renderDebugInfo(16, 16);
+
+    }
+
+})();
diff --git a/build/phaser.d.ts b/build/phaser.d.ts
index e583854f..19ffd41c 100644
--- a/build/phaser.d.ts
+++ b/build/phaser.d.ts
@@ -3250,9 +3250,10 @@ module Phaser.Physics {
         public bounce: Vec2;
         public friction: Vec2;
         public add(shape: IPhysicsShape): IPhysicsShape;
+        public remove(shape: IPhysicsShape): void;
         public update(): void;
         public render(): void;
-        private updateMotion(obj);
+        private updateMotion(shape);
         /**
         * A tween-like function that takes a starting velocity and some other factors and returns an altered velocity.
         *
@@ -3264,9 +3265,12 @@ module Phaser.Physics {
         * @return {number} The altered Velocity value.
         */
         public computeVelocity(velocity: number, gravity?: number, acceleration?: number, drag?: number, max?: number): number;
-        private collideWorld(obj);
-        private separateX(shape, distance, tangent);
-        private separateY(shape, distance, tangent);
+        private collideShapes(shapeA, shapeB);
+        private collideWorld(shape);
+        private separateX(shapeA, shapeB, distance, tangent);
+        private separateY(shapeA, shapeB, distance, tangent);
+        private separateXWall(shapeA, distance, tangent);
+        private separateYWall(shapeA, distance, tangent);
         private separate(shape, distance, tangent);
     }
 }
@@ -3422,6 +3426,51 @@ module Phaser {
         static GEOM_RECTANGLE: number;
         static GEOM_LINE: number;
         static GEOM_POLYGON: number;
+        /**
+        * Flag used to allow GameObjects to collide on their left side
+        * @type {number}
+        */
+        static LEFT: number;
+        /**
+        * Flag used to allow GameObjects to collide on their right side
+        * @type {number}
+        */
+        static RIGHT: number;
+        /**
+        * Flag used to allow GameObjects to collide on their top side
+        * @type {number}
+        */
+        static UP: number;
+        /**
+        * Flag used to allow GameObjects to collide on their bottom side
+        * @type {number}
+        */
+        static DOWN: number;
+        /**
+        * Flag used with GameObjects to disable collision
+        * @type {number}
+        */
+        static NONE: number;
+        /**
+        * Flag used to allow GameObjects to collide with a ceiling
+        * @type {number}
+        */
+        static CEILING: number;
+        /**
+        * Flag used to allow GameObjects to collide with a floor
+        * @type {number}
+        */
+        static FLOOR: number;
+        /**
+        * Flag used to allow GameObjects to collide with a wall (same as LEFT+RIGHT)
+        * @type {number}
+        */
+        static WALL: number;
+        /**
+        * Flag used to allow GameObjects to collide on any face
+        * @type {number}
+        */
+        static ANY: number;
     }
 }
 /**
@@ -6605,6 +6654,30 @@ module Phaser {
     }
 }
 /**
+* Phaser - Physics - Circle
+*/
+module Phaser.Physics {
+    class Circle implements IPhysicsShape {
+        constructor(game: Game, sprite: Sprite, x: number, y: number, diameter: number);
+        public game: Game;
+        public world: PhysicsManager;
+        public sprite: Sprite;
+        public physics: Components.Physics;
+        public position: Vec2;
+        public oldPosition: Vec2;
+        public offset: Vec2;
+        public scale: Vec2;
+        public bounds: Rectangle;
+        public radius: number;
+        public oH: number;
+        public oV: number;
+        public preUpdate(): void;
+        public update(): void;
+        public setSize(width: number, height: number): void;
+        public render(context: CanvasRenderingContext2D): void;
+    }
+}
+/**
 * Phaser - Components - Physics
 */
 module Phaser.Components {
@@ -6629,6 +6702,8 @@ module Phaser.Components {
         public friction: Vec2;
         public velocity: Vec2;
         public acceleration: Vec2;
+        public touching: number;
+        public setCircle(diameter: number): void;
         /**
         * Internal function for updating the position and speed of this object.
         */
diff --git a/build/phaser.js b/build/phaser.js
index 365aa70d..a414e491 100644
--- a/build/phaser.js
+++ b/build/phaser.js
@@ -2958,15 +2958,8 @@ var Phaser;
         **/
         function intersects(a, b, tolerance) {
             if (typeof tolerance === "undefined") { tolerance = 0; }
-            // ?
-            //return (a.right > b.x) && (a.x < b.right) && (a.bottom > b.y) && (a.y < b.bottom);
             return !(a.left > b.right + tolerance || a.right < b.left - tolerance || a.top > b.bottom + tolerance || a.bottom < b.top - tolerance);
-            //if (a.x >= b.right || a.right <= b.x || a.bottom <= b.y || a.y >= b.bottom)
-            //{
-            //    return false;
-            //}
-            //return true;
-                    };
+        };
         RectangleUtils.intersectsRaw = /**
         * Determines whether the object specified intersects (overlaps) with the given values.
         * @method intersectsRaw
@@ -3262,7 +3255,6 @@ var Phaser;
             if (typeof diameter === "undefined") { diameter = 0; }
             this._diameter = 0;
             this._radius = 0;
-            //private _pos: Vec2;
             /**
             * The x coordinate of the center of the circle
             * @property x
@@ -5858,6 +5850,7 @@ var Phaser;
 (function (Phaser) {
     /// <reference path="../Game.ts" />
     /// <reference path="IPhysicsShape.ts" />
+    /// <reference path="../utils/RectangleUtils.ts" />
     /**
     * Phaser - PhysicsManager
     *
@@ -5883,22 +5876,41 @@ var Phaser;
                 this._objects.push(shape);
                 return shape;
             };
+            PhysicsManager.prototype.remove = function (shape) {
+                this._length = this._objects.length;
+                for(var i = 0; i < this._length; i++) {
+                    if(this._objects[i] === shape) {
+                        this._objects[i] = null;
+                    }
+                }
+            };
             PhysicsManager.prototype.update = function () {
                 this._length = this._objects.length;
                 for(var i = 0; i < this._length; i++) {
-                    this._objects[i].preUpdate();
-                    this.updateMotion(this._objects[i]);
-                    this.collideWorld(this._objects[i]);
+                    if(this._objects[i]) {
+                        this._objects[i].preUpdate();
+                        this.updateMotion(this._objects[i]);
+                        this.collideWorld(this._objects[i]);
+                        if(this._objects[i].physics.immovable == false) {
+                            for(var x = 0; x < this._length; x++) {
+                                if(this._objects[x] !== this._objects[i]) {
+                                    this.collideShapes(this._objects[i], this._objects[x]);
+                                }
+                            }
+                        }
+                    }
                 }
             };
             PhysicsManager.prototype.render = function () {
                 //  iterate through the objects here, updating and colliding
                 for(var i = 0; i < this._length; i++) {
-                    this._objects[i].render(this.game.stage.context);
+                    if(this._objects[i]) {
+                        this._objects[i].render(this.game.stage.context);
+                    }
                 }
             };
-            PhysicsManager.prototype.updateMotion = function (obj) {
-                if(obj.physics.moves == false) {
+            PhysicsManager.prototype.updateMotion = function (shape) {
+                if(shape.physics.moves == false) {
                     return;
                 }
                 /*
@@ -5907,16 +5919,16 @@ var Phaser;
                 this._angle += this.angularVelocity * this._game.time.elapsed;
                 this.angularVelocity += velocityDelta;
                 */
-                this._velocityDelta = (this.computeVelocity(obj.physics.velocity.x, obj.physics.gravity.x, obj.physics.acceleration.x, obj.physics.drag.x) - obj.physics.velocity.x) / 2;
-                obj.physics.velocity.x += this._velocityDelta;
-                this._delta = obj.physics.velocity.x * this.game.time.elapsed;
-                obj.physics.velocity.x += this._velocityDelta;
-                obj.position.x += this._delta;
-                this._velocityDelta = (this.computeVelocity(obj.physics.velocity.y, obj.physics.gravity.y, obj.physics.acceleration.y, obj.physics.drag.y) - obj.physics.velocity.y) / 2;
-                obj.physics.velocity.y += this._velocityDelta;
-                this._delta = obj.physics.velocity.y * this.game.time.elapsed;
-                obj.physics.velocity.y += this._velocityDelta;
-                obj.position.y += this._delta;
+                this._velocityDelta = (this.computeVelocity(shape.physics.velocity.x, shape.physics.gravity.x, shape.physics.acceleration.x, shape.physics.drag.x) - shape.physics.velocity.x) / 2;
+                shape.physics.velocity.x += this._velocityDelta;
+                this._delta = shape.physics.velocity.x * this.game.time.elapsed;
+                shape.physics.velocity.x += this._velocityDelta;
+                shape.position.x += this._delta;
+                this._velocityDelta = (this.computeVelocity(shape.physics.velocity.y, shape.physics.gravity.y, shape.physics.acceleration.y, shape.physics.drag.y) - shape.physics.velocity.y) / 2;
+                shape.physics.velocity.y += this._velocityDelta;
+                this._delta = shape.physics.velocity.y * this.game.time.elapsed;
+                shape.physics.velocity.y += this._velocityDelta;
+                shape.position.y += this._delta;
             };
             PhysicsManager.prototype.computeVelocity = /**
             * A tween-like function that takes a starting velocity and some other factors and returns an altered velocity.
@@ -5955,119 +5967,169 @@ var Phaser;
                 }
                 return velocity;
             };
-            PhysicsManager.prototype.collideWorld = function (obj) {
+            PhysicsManager.prototype.collideShapes = function (shapeA, shapeB) {
+                if(shapeA.physics.immovable && shapeB.physics.immovable) {
+                    return;
+                }
+                //  Simple bounds check first
+                if(Phaser.RectangleUtils.intersects(shapeA.bounds, shapeB.bounds)) {
+                    //  Collide on the x-axis
+                    if(shapeA.bounds.right >= shapeB.bounds.x && shapeA.bounds.right <= shapeB.bounds.right) {
+                        //  The right side of ShapeA hit the left side of ShapeB
+                        this._distance.x = shapeB.bounds.x - shapeA.bounds.right;
+                        if(this._distance.x != 0) {
+                            this._tangent.setTo(-1, 0);
+                            this.separateX(shapeA, shapeB, this._distance, this._tangent);
+                        }
+                    } else if(shapeA.bounds.x <= shapeB.bounds.right && shapeA.bounds.x >= shapeB.bounds.x) {
+                        //  The left side of ShapeA hit the right side of ShapeB
+                        this._distance.x = shapeB.bounds.right - shapeA.bounds.x;
+                        if(this._distance.x != 0) {
+                            this._tangent.setTo(1, 0);
+                            this.separateX(shapeA, shapeB, this._distance, this._tangent);
+                        }
+                    }
+                    //  Collide on the y-axis
+                    if(shapeA.bounds.y <= shapeB.bounds.bottom && shapeA.bounds.y >= shapeB.bounds.y) {
+                        console.log(shapeA.bounds.y, shapeB.bounds.bottom, shapeB.bounds.y);
+                        //  The top of ShapeA hit the bottom of ShapeB
+                        this._distance.y = shapeB.bounds.bottom - shapeA.bounds.y;
+                        if(this._distance.y != 0) {
+                            this._tangent.setTo(0, 1);
+                            this.separateY(shapeA, shapeB, this._distance, this._tangent);
+                        }
+                    } else if(shapeA.bounds.bottom >= shapeB.bounds.y && shapeA.bounds.bottom <= shapeB.bounds.bottom) {
+                        console.log(shapeA.bounds.bottom, shapeB.bounds.y, shapeB.bounds.bottom);
+                        //  The bottom of ShapeA hit the top of ShapeB
+                        this._distance.y = shapeB.bounds.y - shapeA.bounds.bottom;
+                        if(this._distance.y != 0) {
+                            this._tangent.setTo(0, -1);
+                            this.separateY(shapeA, shapeB, this._distance, this._tangent);
+                        }
+                    }
+                }
+            };
+            PhysicsManager.prototype.collideWorld = function (shape) {
                 //  Collide on the x-axis
-                this._distance.x = obj.world.bounds.x - (obj.position.x - obj.bounds.halfWidth);
+                this._distance.x = shape.world.bounds.x - (shape.position.x - shape.bounds.halfWidth);
                 if(0 < this._distance.x) {
                     //  Hit Left
                     this._tangent.setTo(1, 0);
-                    this.separateX(obj, this._distance, this._tangent);
+                    this.separateXWall(shape, this._distance, this._tangent);
                 } else {
-                    this._distance.x = (obj.position.x + obj.bounds.halfWidth) - obj.world.bounds.right;
+                    this._distance.x = (shape.position.x + shape.bounds.halfWidth) - shape.world.bounds.right;
                     if(0 < this._distance.x) {
                         //  Hit Right
                         this._tangent.setTo(-1, 0);
                         this._distance.reverse();
-                        this.separateX(obj, this._distance, this._tangent);
+                        this.separateXWall(shape, this._distance, this._tangent);
                     }
                 }
                 //  Collide on the y-axis
-                this._distance.y = obj.world.bounds.y - (obj.position.y - obj.bounds.halfHeight);
+                this._distance.y = shape.world.bounds.y - (shape.position.y - shape.bounds.halfHeight);
                 if(0 < this._distance.y) {
                     //  Hit Top
                     this._tangent.setTo(0, 1);
-                    this.separateY(obj, this._distance, this._tangent);
+                    this.separateYWall(shape, this._distance, this._tangent);
                 } else {
-                    this._distance.y = (obj.position.y + obj.bounds.halfHeight) - obj.world.bounds.bottom;
+                    this._distance.y = (shape.position.y + shape.bounds.halfHeight) - shape.world.bounds.bottom;
                     if(0 < this._distance.y) {
                         //  Hit Bottom
                         this._tangent.setTo(0, -1);
                         this._distance.reverse();
-                        this.separateY(obj, this._distance, this._tangent);
+                        this.separateYWall(shape, this._distance, this._tangent);
                     }
                 }
             };
-            PhysicsManager.prototype.separateX = /*
-            private OLDButWorkingcollideWorld(obj:IPhysicsShape) {
-            
-            this._distance.setTo(0, 0);
-            
-            //  Collide on the x-axis
-            this._distance.x = obj.world.bounds.x - (obj.position.x - obj.bounds.halfWidth);
-            
-            if (0 < this._distance.x)
-            {
-            //  Hit Left
-            //  Parameter order: px, py (distance), dx, dy (tangent)
-            this._tangent.setTo(1, 0);
-            this.separate(obj, this._distance, this._tangent);
-            }
-            else
-            {
-            this._distance.x = (obj.position.x + obj.bounds.halfWidth) - obj.world.bounds.right;
-            
-            if (0 < this._distance.x)
-            {
-            //  Hit Right
-            //  Parameter order: px, py (distance), dx, dy (tangent)
-            this._tangent.setTo(-1, 0);
-            this._distance.x = -this._distance.x;
-            this.separate(obj, this._distance, this._tangent);
-            }
-            }
-            
-            //  Collide on the y-axis
-            this._distance.x = 0;
-            this._distance.y = obj.world.bounds.y - (obj.position.y - obj.bounds.halfHeight);
-            
-            if (0 < this._distance.y)
-            {
-            //  Hit Top
-            this._tangent.setTo(0, 1);
-            this.separate(obj, this._distance, this._tangent);
-            }
-            else
-            {
-            this._distance.y = (obj.position.y + obj.bounds.halfHeight) - obj.world.bounds.bottom;
-            
-            if (0 < this._distance.y)
-            {
-            //  Hit Bottom
-            this._tangent.setTo(0, -1);
-            this._distance.y = -this._distance.y;
-            this.separate(obj, this._distance, this._tangent);
-            }
-            }
-            
-            }
-            */
-            function (shape, distance, tangent) {
+            PhysicsManager.prototype.separateX = function (shapeA, shapeB, distance, tangent) {
+                if(tangent.x == 1) {
+                    console.log('The left side of ShapeA hit the right side of ShapeB', distance.x);
+                    shapeA.physics.touching |= Phaser.Types.LEFT;
+                    shapeB.physics.touching |= Phaser.Types.RIGHT;
+                } else {
+                    console.log('The right side of ShapeA hit the left side of ShapeB', distance.x);
+                    shapeA.physics.touching |= Phaser.Types.RIGHT;
+                    shapeB.physics.touching |= Phaser.Types.LEFT;
+                }
                 //  collision edges
-                shape.oH = tangent.x;
+                shapeA.oH = tangent.x;
                 //  only apply collision response forces if the object is travelling into, and not out of, the collision
-                if(Phaser.Vec2Utils.dot(shape.physics.velocity, tangent) < 0) {
+                if(Phaser.Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0) {
                     //  Apply horizontal bounce
-                    if(shape.physics.bounce.x > 0) {
-                        shape.physics.velocity.x *= -(shape.physics.bounce.x);
+                    if(shapeA.physics.bounce.x > 0) {
+                        shapeA.physics.velocity.x *= -(shapeA.physics.bounce.x);
                     } else {
-                        shape.physics.velocity.x = 0;
+                        shapeA.physics.velocity.x = 0;
                     }
                 }
-                shape.position.x += distance.x;
+                shapeA.position.x += distance.x;
+                shapeA.bounds.x += distance.x;
             };
-            PhysicsManager.prototype.separateY = function (shape, distance, tangent) {
+            PhysicsManager.prototype.separateY = function (shapeA, shapeB, distance, tangent) {
+                if(tangent.y == 1) {
+                    console.log('The top of ShapeA hit the bottom of ShapeB', distance.y);
+                    shapeA.physics.touching |= Phaser.Types.UP;
+                    shapeB.physics.touching |= Phaser.Types.DOWN;
+                } else {
+                    console.log('The bottom of ShapeA hit the top of ShapeB', distance.y);
+                    shapeA.physics.touching |= Phaser.Types.DOWN;
+                    shapeB.physics.touching |= Phaser.Types.UP;
+                }
                 //  collision edges
-                shape.oV = tangent.y;
+                shapeA.oV = tangent.y;
                 //  only apply collision response forces if the object is travelling into, and not out of, the collision
-                if(Phaser.Vec2Utils.dot(shape.physics.velocity, tangent) < 0) {
+                if(Phaser.Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0) {
                     //  Apply horizontal bounce
-                    if(shape.physics.bounce.y > 0) {
-                        shape.physics.velocity.y *= -(shape.physics.bounce.y);
+                    if(shapeA.physics.bounce.y > 0) {
+                        shapeA.physics.velocity.y *= -(shapeA.physics.bounce.y);
                     } else {
-                        shape.physics.velocity.y = 0;
+                        shapeA.physics.velocity.y = 0;
                     }
                 }
-                shape.position.y += distance.y;
+                shapeA.position.y += distance.y;
+                shapeA.bounds.y += distance.y;
+            };
+            PhysicsManager.prototype.separateXWall = function (shapeA, distance, tangent) {
+                if(tangent.x == 1) {
+                    console.log('The left side of ShapeA hit the right side of ShapeB', distance.x);
+                    shapeA.physics.touching |= Phaser.Types.LEFT;
+                } else {
+                    console.log('The right side of ShapeA hit the left side of ShapeB', distance.x);
+                    shapeA.physics.touching |= Phaser.Types.RIGHT;
+                }
+                //  collision edges
+                shapeA.oH = tangent.x;
+                //  only apply collision response forces if the object is travelling into, and not out of, the collision
+                if(Phaser.Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0) {
+                    //  Apply horizontal bounce
+                    if(shapeA.physics.bounce.x > 0) {
+                        shapeA.physics.velocity.x *= -(shapeA.physics.bounce.x);
+                    } else {
+                        shapeA.physics.velocity.x = 0;
+                    }
+                }
+                shapeA.position.x += distance.x;
+            };
+            PhysicsManager.prototype.separateYWall = function (shapeA, distance, tangent) {
+                if(tangent.y == 1) {
+                    console.log('The top of ShapeA hit the bottom of ShapeB', distance.y);
+                    shapeA.physics.touching |= Phaser.Types.UP;
+                } else {
+                    console.log('The bottom of ShapeA hit the top of ShapeB', distance.y);
+                    shapeA.physics.touching |= Phaser.Types.DOWN;
+                }
+                //  collision edges
+                shapeA.oV = tangent.y;
+                //  only apply collision response forces if the object is travelling into, and not out of, the collision
+                if(Phaser.Vec2Utils.dot(shapeA.physics.velocity, tangent) < 0) {
+                    //  Apply horizontal bounce
+                    if(shapeA.physics.bounce.y > 0) {
+                        shapeA.physics.velocity.y *= -(shapeA.physics.bounce.y);
+                    } else {
+                        shapeA.physics.velocity.y = 0;
+                    }
+                }
+                shapeA.position.y += distance.y;
             };
             PhysicsManager.prototype.separate = function (shape, distance, tangent) {
                 //  collision edges
@@ -6111,7 +6173,46 @@ var Phaser;
             return PhysicsManager;
         })();
         Physics.PhysicsManager = PhysicsManager;        
-    })(Phaser.Physics || (Phaser.Physics = {}));
+        /**
+        * Checks for overlaps between two objects using the world QuadTree. Can be GameObject vs. GameObject, GameObject vs. Group or Group vs. Group.
+        * Note: Does not take the objects scrollFactor into account. All overlaps are check in world space.
+        * @param object1 The first GameObject or Group to check. If null the world.group is used.
+        * @param object2 The second GameObject or Group to check.
+        * @param notifyCallback A callback function that is called if the objects overlap. The two objects will be passed to this function in the same order in which you passed them to Collision.overlap.
+        * @param processCallback A callback function that lets you perform additional checks against the two objects if they overlap. If this is set then notifyCallback will only be called if processCallback returns true.
+        * @param context The context in which the callbacks will be called
+        * @returns {boolean} true if the objects overlap, otherwise false.
+        */
+        /*
+        public overlap(object1: Basic = null, object2: Basic = null, notifyCallback = null, processCallback = null, context = null): bool {
+        
+        if (object1 == null)
+        {
+        object1 = this._game.world.group;
+        }
+        
+        if (object2 == object1)
+        {
+        object2 = null;
+        }
+        
+        QuadTree.divisions = this._game.world.worldDivisions;
+        
+        var quadTree: QuadTree = new QuadTree(this._game.world.bounds.x, this._game.world.bounds.y, this._game.world.bounds.width, this._game.world.bounds.height);
+        
+        quadTree.load(object1, object2, notifyCallback, processCallback, context);
+        
+        var result: bool = quadTree.execute();
+        
+        quadTree.destroy();
+        
+        quadTree = null;
+        
+        return result;
+        
+        }
+        */
+            })(Phaser.Physics || (Phaser.Physics = {}));
     var Physics = Phaser.Physics;
 })(Phaser || (Phaser = {}));
 var Phaser;
@@ -6144,6 +6245,8 @@ var Phaser;
             }
             AABB.prototype.preUpdate = function () {
                 this.oldPosition.copyFrom(this.position);
+                this.bounds.x = this.position.x - this.bounds.halfWidth;
+                this.bounds.y = this.position.y - this.bounds.halfHeight;
                 if(this.sprite) {
                     this.position.setTo((this.sprite.x + this.bounds.halfWidth) + this.offset.x, (this.sprite.y + this.bounds.halfHeight) + this.offset.y);
                     //  Update scale / dimensions
@@ -6155,14 +6258,19 @@ var Phaser;
                 }
             };
             AABB.prototype.update = function () {
-                this.bounds.x = this.position.x;
-                this.bounds.y = this.position.y;
-            };
+                //this.bounds.x = this.position.x;
+                //this.bounds.y = this.position.y;
+                            };
             AABB.prototype.setSize = function (width, height) {
                 this.bounds.width = width;
                 this.bounds.height = height;
             };
             AABB.prototype.render = function (context) {
+                //context.beginPath();
+                //context.strokeStyle = 'rgb(255,255,0)';
+                //context.strokeRect(this.bounds.x, this.bounds.y, this.bounds.width, this.bounds.height);
+                //context.stroke();
+                //context.closePath();
                 context.beginPath();
                 context.strokeStyle = 'rgb(0,255,0)';
                 context.strokeRect(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight, this.bounds.width, this.bounds.height);
@@ -6171,14 +6279,14 @@ var Phaser;
                 //  center point
                 context.fillStyle = 'rgb(0,255,0)';
                 context.fillRect(this.position.x, this.position.y, 2, 2);
-                if(this.oH == 1) {
+                if(this.physics.touching == Phaser.Types.LEFT) {
                     context.beginPath();
                     context.strokeStyle = 'rgb(255,0,0)';
                     context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
                     context.lineTo(this.position.x - this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
                     context.stroke();
                     context.closePath();
-                } else if(this.oH == -1) {
+                } else if(this.physics.touching == Phaser.Types.RIGHT) {
                     context.beginPath();
                     context.strokeStyle = 'rgb(255,0,0)';
                     context.moveTo(this.position.x + this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
@@ -6186,14 +6294,14 @@ var Phaser;
                     context.stroke();
                     context.closePath();
                 }
-                if(this.oV == 1) {
+                if(this.physics.touching == Phaser.Types.UP) {
                     context.beginPath();
                     context.strokeStyle = 'rgb(255,0,0)';
                     context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
                     context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
                     context.stroke();
                     context.closePath();
-                } else if(this.oV == -1) {
+                } else if(this.physics.touching == Phaser.Types.DOWN) {
                     context.beginPath();
                     context.strokeStyle = 'rgb(255,0,0)';
                     context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
@@ -6439,6 +6547,15 @@ var Phaser;
         Types.GEOM_RECTANGLE = 2;
         Types.GEOM_LINE = 3;
         Types.GEOM_POLYGON = 4;
+        Types.LEFT = 0x0001;
+        Types.RIGHT = 0x0010;
+        Types.UP = 0x0100;
+        Types.DOWN = 0x1000;
+        Types.NONE = 0;
+        Types.CEILING = Types.UP;
+        Types.FLOOR = Types.DOWN;
+        Types.WALL = Types.LEFT | Types.RIGHT;
+        Types.ANY = Types.LEFT | Types.RIGHT | Types.UP | Types.DOWN;
         return Types;
     })();
     Phaser.Types = Types;    
@@ -12132,17 +12249,120 @@ var Phaser;
     Phaser.Vec2 = Vec2;    
 })(Phaser || (Phaser = {}));
 var Phaser;
+(function (Phaser) {
+    /// <reference path="../Game.ts" />
+    /// <reference path="../core/Rectangle.ts" />
+    /// <reference path="../math/Vec2Utils.ts" />
+    /// <reference path="PhysicsManager.ts" />
+    /// <reference path="IPhysicsShape.ts" />
+    /**
+    * Phaser - Physics - Circle
+    */
+    (function (Physics) {
+        var Circle = (function () {
+            function Circle(game, sprite, x, y, diameter) {
+                this.game = game;
+                this.world = game.world.physics;
+                if(sprite !== null) {
+                    this.sprite = sprite;
+                    this.scale = Phaser.Vec2Utils.clone(this.sprite.scale);
+                } else {
+                    this.sprite = null;
+                    this.physics = null;
+                    this.scale = new Phaser.Vec2(1, 1);
+                }
+                this.radius = diameter / 2;
+                this.bounds = new Phaser.Rectangle(x + Math.round(diameter / 2), y + Math.round(diameter / 2), diameter, diameter);
+                this.position = new Phaser.Vec2(x + this.bounds.halfWidth, y + this.bounds.halfHeight);
+                this.oldPosition = new Phaser.Vec2(x + this.bounds.halfWidth, y + this.bounds.halfHeight);
+                this.offset = new Phaser.Vec2(0, 0);
+            }
+            Circle.prototype.preUpdate = function () {
+                this.oldPosition.copyFrom(this.position);
+                if(this.sprite) {
+                    this.position.setTo((this.sprite.x + this.bounds.halfWidth) + this.offset.x, (this.sprite.y + this.bounds.halfHeight) + this.offset.y);
+                    //  Update scale / dimensions
+                    if(Phaser.Vec2Utils.equals(this.scale, this.sprite.scale) == false) {
+                        this.scale.copyFrom(this.sprite.scale);
+                        //  needs to be radius based (+ square)
+                        //this.bounds.width = this.sprite.width;
+                        //this.bounds.height = this.sprite.height;
+                                            }
+                }
+            };
+            Circle.prototype.update = function () {
+                this.bounds.x = this.position.x;
+                this.bounds.y = this.position.y;
+            };
+            Circle.prototype.setSize = function (width, height) {
+                this.bounds.width = width;
+                this.bounds.height = height;
+            };
+            Circle.prototype.render = function (context) {
+                context.beginPath();
+                context.strokeStyle = 'rgb(0,255,0)';
+                context.arc(this.position.x, this.position.y, this.radius, 0, Math.PI * 2);
+                context.stroke();
+                context.closePath();
+                //  center point
+                context.fillStyle = 'rgb(0,255,0)';
+                context.fillRect(this.position.x, this.position.y, 2, 2);
+                if(this.oH == 1) {
+                    context.beginPath();
+                    context.strokeStyle = 'rgb(255,0,0)';
+                    context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                    context.lineTo(this.position.x - this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                    context.stroke();
+                    context.closePath();
+                } else if(this.oH == -1) {
+                    context.beginPath();
+                    context.strokeStyle = 'rgb(255,0,0)';
+                    context.moveTo(this.position.x + this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                    context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                    context.stroke();
+                    context.closePath();
+                }
+                if(this.oV == 1) {
+                    context.beginPath();
+                    context.strokeStyle = 'rgb(255,0,0)';
+                    context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                    context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y - this.bounds.halfHeight);
+                    context.stroke();
+                    context.closePath();
+                } else if(this.oV == -1) {
+                    context.beginPath();
+                    context.strokeStyle = 'rgb(255,0,0)';
+                    context.moveTo(this.position.x - this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                    context.lineTo(this.position.x + this.bounds.halfWidth, this.position.y + this.bounds.halfHeight);
+                    context.stroke();
+                    context.closePath();
+                }
+            };
+            return Circle;
+        })();
+        Physics.Circle = Circle;        
+    })(Phaser.Physics || (Phaser.Physics = {}));
+    var Physics = Phaser.Physics;
+})(Phaser || (Phaser = {}));
+var Phaser;
 (function (Phaser) {
     /// <reference path="../../core/Vec2.ts" />
     /// <reference path="../../core/Point.ts" />
     /// <reference path="../../math/Vec2Utils.ts" />
     /// <reference path="../../physics/AABB.ts" />
+    /// <reference path="../../physics/Circle.ts" />
+    /// <reference path="../../physics/IPhysicsShape.ts" />
     /**
     * Phaser - Components - Physics
     */
     (function (Components) {
         var Physics = (function () {
             function Physics(parent) {
+                /**
+                * Whether this object will be moved by impacts with other objects or not.
+                * @type {boolean}
+                */
+                this.immovable = false;
                 /**
                 * Set this to false if you want to skip the automatic movement stuff
                 * @type {boolean}
@@ -12156,13 +12376,19 @@ var Phaser;
                 this.friction = Phaser.Vec2Utils.clone(this.game.world.physics.friction);
                 this.velocity = new Phaser.Vec2();
                 this.acceleration = new Phaser.Vec2();
+                this.touching = Phaser.Types.NONE;
                 this.shape = this.game.world.physics.add(new Phaser.Physics.AABB(this.game, this._sprite, this._sprite.x, this._sprite.y, this._sprite.width, this._sprite.height));
             }
+            Physics.prototype.setCircle = function (diameter) {
+                this.game.world.physics.remove(this.shape);
+                this.shape = this.game.world.physics.add(new Phaser.Physics.Circle(this.game, this._sprite, this._sprite.x, this._sprite.y, diameter));
+                this._sprite.physics.shape.physics = this;
+            };
             Physics.prototype.update = /**
             * Internal function for updating the position and speed of this object.
             */
             function () {
-                if(this.moves) {
+                if(this.moves && this.shape) {
                     this._sprite.x = (this.shape.position.x - this.shape.bounds.halfWidth) - this.shape.offset.x;
                     this._sprite.y = (this.shape.position.y - this.shape.bounds.halfHeight) - this.shape.offset.y;
                 }
@@ -12177,7 +12403,8 @@ var Phaser;
                 if (typeof color === "undefined") { color = 'rgb(255,255,255)'; }
                 this._sprite.texture.context.fillStyle = color;
                 this._sprite.texture.context.fillText('Sprite: (' + this._sprite.frameBounds.width + ' x ' + this._sprite.frameBounds.height + ')', x, y);
-                this._sprite.texture.context.fillText('x: ' + this._sprite.frameBounds.x.toFixed(1) + ' y: ' + this._sprite.frameBounds.y.toFixed(1) + ' rotation: ' + this._sprite.rotation.toFixed(1), x, y + 14);
+                //this._sprite.texture.context.fillText('x: ' + this._sprite.frameBounds.x.toFixed(1) + ' y: ' + this._sprite.frameBounds.y.toFixed(1) + ' rotation: ' + this._sprite.rotation.toFixed(1), x, y + 14);
+                this._sprite.texture.context.fillText('x: ' + this.shape.bounds.x.toFixed(1) + ' y: ' + this.shape.bounds.y.toFixed(1) + ' rotation: ' + this._sprite.rotation.toFixed(1), x, y + 14);
                 this._sprite.texture.context.fillText('vx: ' + this.velocity.x.toFixed(1) + ' vy: ' + this.velocity.y.toFixed(1), x, y + 28);
                 this._sprite.texture.context.fillText('ax: ' + this.acceleration.x.toFixed(1) + ' ay: ' + this.acceleration.y.toFixed(1), x, y + 42);
             };