46 tests with assets and javascript code.

Tests/sprites/out of screen.js

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+(function() {
+    var game = new Phaser.Game(this, 'game', 800, 600, init, create, update, render);
+
+    function init() {
+        game.load.spritesheet('rect', 'assets/buttons/number-buttons-90x90.png', 90, 90);
+        game.load.start();
+    }
+    function create() {
+        var rect, factor;
+        for (var i = 0; i < 16; i++) {
+            rect = game.add.sprite(10 + Math.random() * 700, 10 + Math.random() * 300, 'rect', Math.round(Math.random() * 5));
+            factor = 0.2 + Math.random() * 2;
+            rect.transform.scale.setTo(factor, factor);
+            factor = 2 + Math.random() * 6;
+            rect.speed = factor;
+        }
+        console.log(game.world.group.length);
+    }
+    function update() {
+        game.world.group.forEach(function(rect) {
+            // Apply speed to each rect.
+            rect.y += rect.speed;
+            // Move the rect back to screen if it's not.
+            if (!Phaser.SpriteUtils.onScreen(rect)) {
+                rect.y = 0;
+            }
+        });
+    }
+})();

Tests/sprites/rotate around.js

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+(function() {
+    var game = new Phaser.Game(this, 'game', 800, 600, init, create, update, render);
+
+    var rotationSrv, angle = 0;
+
+    function init() {
+        game.load.spritesheet('x', 'assets/sprites/x.png', 220, 160);
+        game.load.start();
+    }
+    function create() {
+        // Create 6 sprites rotating around the center at the beginning.
+        for (var i = 0; i < 3; i++) {
+            game.add.sprite(210 - ((i % 2) ? 140 : 0), 120 * (i + 1), 'x', i);
+            game.add.sprite(370 + ((i % 2) ? 140 : 0), 120 * (i + 1), 'x', i + 3);
+        }
+
+        // Set a default rotation server pointer.
+        rotationSrv = new Phaser.Point(game.stage.centerX, game.stage.centerY);
+
+        // Rotate all the sprites around the touch point.
+        game.input.onTap.add(function(pointer) {
+            rotationSrv.x = pointer.position.x;
+            rotationSrv.y = pointer.position.y;
+        });
+    }
+    function update() {
+        angle += 0.1;
+
+        game.world.group.forEach(function(obj) {
+            var resPointer = new Phaser.Point(obj.x, obj.y);
+            Phaser.PointUtils.rotateAroundPoint(resPointer, rotationSrv, angle);
+            obj.x = resPointer.x;
+            obj.y = resPointer.y;
+        });
+    }
+    function render() {
+        Phaser.DebugUtils.context.fillStyle = '#fff';
+        Phaser.DebugUtils.context.fillText('Tap or click to set new rotation point.', 280, 100);
+    }
+})();