===================================================================
--- original.js
+++ change.js
@@ -1,18 +1,27 @@
+/**** 
+* Classes
+****/ 
 var Bullet = Container.expand(function () {
 	var self = Container.call(this);
-	var bulletGraphics = self.createAsset('bullet', 'Bullet Graphics', .5, .5);
+	var bulletGraphics = self.attachAsset('bullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
 	self.speed = 20;
-	self.move = function () {
+	self._move_migrated = function () {
 		self.x += self.speed * Math.cos(self.angle);
 		self.y += self.speed * Math.sin(self.angle);
 		self.rotation += 0.1;
 	};
 });
 var Enemy = Container.expand(function (hero) {
 	var self = Container.call(this);
-	var enemyGraphics = self.createAsset('enemy', 'Enemy character', .5, .5);
-	self.move = function () {
+	var enemyGraphics = self.attachAsset('enemy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self._move_migrated = function () {
 		var dx = hero.x - self.x;
 		var dy = hero.y - self.y;
 		var distance = Math.sqrt(dx * dx + dy * dy);
 		self.x += dx / distance * 1.8;
@@ -20,10 +29,13 @@
 	};
 });
 var Hero = Container.expand(function () {
 	var self = Container.call(this);
-	var heroGraphics = self.createAsset('hero', 'Hero character', .5, .5);
-	self.move = function () {
+	var heroGraphics = self.attachAsset('hero', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self._move_migrated = function () {
 		if (self.targetPos) {
 			var dx = self.targetPos.x - self.x;
 			var dy = self.targetPos.y - self.y;
 			var distance = Math.sqrt(dx * dx + dy * dy);
@@ -37,80 +49,88 @@
 			}
 		}
 	};
 });
-var Game = Container.expand(function () {
-	var self = Container.call(this);
-	LK.stageContainer.setBackgroundColor(0x008000);
-	var hero = self.addChild(new Hero());
-	hero.enemies = [];
-	var heroBullets = [];
-	var enemyBullets = [];
-	hero.x = 2048 / 2;
-	hero.y = 2732 / 2;
-	self.targetPos = null;
-	stage.on('down', function (obj) {
-		hero.targetPos = obj.event.getLocalPosition(self);
-	});
-	var spawnEnemy = function () {
-		var side = Math.floor(Math.random() * 4);
-		var enemy = new Enemy(hero);
-		switch (side) {
-			case 0:
-				enemy.x = Math.random() * 2048;
-				enemy.y = 0;
-				break;
-			case 1:
-				enemy.x = 2048;
-				enemy.y = Math.random() * 2732;
-				break;
-			case 2:
-				enemy.x = Math.random() * 2048;
-				enemy.y = 2732;
-				break;
-			case 3:
-				enemy.x = 0;
-				enemy.y = Math.random() * 2732;
-				break;
-		}
-		hero.enemies.push(enemy);
-		self.addChild(enemy);
-	};
-	LK.on('tick', function () {
-		hero.move();
-		for (var i = 0; i < heroBullets.length; i++) {
-			heroBullets[i].move();
-		}
-		for (var i = 0; i < enemyBullets.length; i++) {
-			enemyBullets[i].move();
-		}
-		for (var i = 0; i < hero.enemies.length; i++) {
-			hero.enemies[i].move();
-			for (var j = 0; j < heroBullets.length; j++) {
-				if (heroBullets[j].intersects(hero.enemies[i])) {
-					heroBullets[j].destroy();
-					heroBullets.splice(j, 1);
-					hero.enemies[i].destroy();
-					hero.enemies.splice(i, 1);
-					i--;
-					j--;
-				}
+
+/**** 
+* Initialize Game
+****/ 
+var game = new LK.Game({
+	backgroundColor: 0x000000
+});
+
+/**** 
+* Game Code
+****/ 
+game.setBackgroundColor(0x008000);
+var hero = game.addChild(new Hero());
+hero.enemies = [];
+var heroBullets = [];
+var enemyBullets = [];
+hero.x = 2048 / 2;
+hero.y = 2732 / 2;
+game.targetPos = null;
+game.on('down', function (x, y, obj) {
+	hero.targetPos = game.toLocal(obj.global);
+});
+var spawnEnemy = function spawnEnemy() {
+	var side = Math.floor(Math.random() * 4);
+	var enemy = new Enemy(hero);
+	switch (side) {
+		case 0:
+			enemy.x = Math.random() * 2048;
+			enemy.y = 0;
+			break;
+		case 1:
+			enemy.x = 2048;
+			enemy.y = Math.random() * 2732;
+			break;
+		case 2:
+			enemy.x = Math.random() * 2048;
+			enemy.y = 2732;
+			break;
+		case 3:
+			enemy.x = 0;
+			enemy.y = Math.random() * 2732;
+			break;
+	}
+	hero.enemies.push(enemy);
+	game.addChild(enemy);
+};
+LK.on('tick', function () {
+	hero._move_migrated();
+	for (var i = 0; i < heroBullets.length; i++) {
+		heroBullets[i]._move_migrated();
+	}
+	for (var i = 0; i < enemyBullets.length; i++) {
+		enemyBullets[i]._move_migrated();
+	}
+	for (var i = 0; i < hero.enemies.length; i++) {
+		hero.enemies[i]._move_migrated();
+		for (var j = 0; j < heroBullets.length; j++) {
+			if (heroBullets[j].intersects(hero.enemies[i])) {
+				heroBullets[j].destroy();
+				heroBullets.splice(j, 1);
+				hero.enemies[i].destroy();
+				hero.enemies.splice(i, 1);
+				i--;
+				j--;
 			}
-			if (hero.intersects(hero.enemies[i])) {
-				LK.showGameOver();
-			}
 		}
-		if (LK.ticks % 30 === 0) {
-			spawnEnemy();
+		if (hero.intersects(hero.enemies[i])) {
+			LK.showGameOver();
 		}
-		if (LK.ticks % 20 === 0 && hero.targetPos) {
-			var bullet = new Bullet();
-			bullet.x = hero.x;
-			bullet.y = hero.y;
-			var dx = hero.targetPos.x - hero.x;
-			var dy = hero.targetPos.y - hero.y;
-			bullet.angle = Math.atan2(dy, dx);
-			heroBullets.push(bullet);
-			self.addChild(bullet);
-		}
-	});
-});
+	}
+	if (LK.ticks % 30 === 0) {
+		spawnEnemy();
+	}
+	if (LK.ticks % 20 === 0 && hero.targetPos) {
+		var bullet = new Bullet();
+		bullet.x = hero.x;
+		bullet.y = hero.y;
+		var dx = hero.targetPos.x - hero.x;
+		var dy = hero.targetPos.y - hero.y;
+		bullet.angle = Math.atan2(dy, dx);
+		heroBullets.push(bullet);
+		game.addChild(bullet);
+	}
+});
\ No newline at end of file