===================================================================
--- original.js
+++ change.js
@@ -1,9 +1,4 @@
-var Bubble = Container.expand(function () {
-	var self = Container.call(this);
-	var bubbleGraphics = self.createAsset('bubble', 'Bubble asset', .5, .5);
-	self.duration = 3000;
-});
 var Urchin = Container.expand(function () {
 	var self = Container.call(this);
 	var urchinGraphics = self.createAsset('urchinWithSpikes', 'Urchin character with spikes', .5, .5);
 	self.health = 5;
@@ -18,9 +13,9 @@
 	self.move = function (urchinX, urchinY) {
 		var dx = urchinX - this.x;
 		var dy = urchinY - this.y;
 		var distance = Math.sqrt(dx * dx + dy * dy);
-		if (distance < 500 && distance > this.width / 2 + urchin.width / 2) {
+		if (distance < 500) {
 			var angle = Math.atan2(dy, dx);
 			var moveX = Math.cos(angle) * this.speed;
 			this.x += moveX;
 			this.y += Math.sin(angle) * this.speed;
@@ -30,10 +25,8 @@
 });
 var Game = Container.expand(function () {
 	var self = Container.call(this);
 	var background = self.createAsset('background', 'Game background', 0, 0);
-	background.width = LK.stageContainer.width;
-	background.height = LK.stageContainer.height;
 	self.addChildAt(background, 0);
 	LK.stageContainer.setBackgroundColor(0x000000);
 	var urchin = self.addChild(new Urchin());
 	var fishes = [];
@@ -48,23 +41,11 @@
 	stage.on('down', function (obj) {
 		var event = obj.event;
 		var pos = event.getLocalPosition(self);
 		var distance = Math.sqrt(Math.pow(pos.x - urchin.x, 2) + Math.pow(pos.y - urchin.y, 2));
-		var bubbles = self.children.filter(function (child) {
-			return child instanceof Bubble;
-		});
-		for (var i = 0; i < bubbles.length; i++) {
-			if (bubbles[i].intersects(urchin)) {
-				urchin.scale.set(2);
-				(function (urchinRef, bubbleDuration) {
-					LK.setTimeout(function () {
-						urchinRef.scale.set(1);
-					}, bubbleDuration);
-				})(urchin, bubbles[i].duration);
-				bubbles[i].destroy();
-			}
-		}
 		if (distance > urchin.width / 2) {
+			urchin.scale.set(1.5);
+		} else {
 			dragNode = urchin;
 		}
 	});
 	function handleMove(obj) {
@@ -81,33 +62,22 @@
 		if (urchin.scale.x > 1) urchin.scale.set(1);
 	});
 	LK.on('tick', function () {
 		urchin.move();
-		var fishesCopy = fishes.slice();
-		for (var i = 0; i < fishesCopy.length; i++) {
-			var fish = fishesCopy[i];
-			fish.move(urchin.x, urchin.y);
-			if (urchin.intersects(fish)) {
+		for (var i = 0; i < fishes.length; i++) {
+			fishes[i].move(urchin.x, urchin.y);
+			if (urchin.intersects(fishes[i])) {
 				if (urchin.scale.x === 1) {
 					urchin.health -= 1;
 					if (urchin.health <= 0) {}
 				} else {
-					fish.destroy();
-					fishes.splice(fishes.indexOf(fish), 1);
-					scoreTxt.text = (parseInt(scoreTxt.text, 10) + 1).toString();
-					continue;
+					urchin.push();
 				}
-				fish.destroy();
-				fishes.splice(fishes.indexOf(fish), 1);
-				scoreTxt.setText((parseInt(scoreTxt.text) + 1).toString());
+				fishes[i].destroy();
+				fishes.splice(i, 1);
+				scoreTxt.text = (parseInt(scoreTxt.text) + 1).toString();
 			}
 		}
-		if (Math.random() < 0.02) {
-			var newBubble = new Bubble();
-			newBubble.x = Math.random() * 2048;
-			newBubble.y = -100;
-			self.addChild(newBubble);
-		}
 		if (Math.random() < 0.01 && fishes.length < 20) {
 			var newFish = new Fish();
 			var side = Math.floor(Math.random() * 4);
 			var targetX, targetY;