===================================================================
--- original.js
+++ change.js
@@ -1,116 +1,120 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 // Coin class
 var Coin = Container.expand(function () {
-  var self = Container.call(this);
-  var coinGraphics = self.attachAsset('coin', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speedX = -5;
-  self.update = function () {
-    self.x += self.speedX;
-    if (self.x < -coinGraphics.width / 2) {
-      self.destroy();
-    }
-  };
+	var self = Container.call(this);
+	var coinGraphics = self.attachAsset('coin', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speedX = -5;
+	self.update = function () {
+		self.x += self.speedX;
+		if (self.x < -coinGraphics.width / 2) {
+			self.destroy();
+		}
+	};
 });
 //<Assets used in the game will automatically appear here>
 //<Write imports for supported plugins here>
 // Jetpack character class
 var JetpackCharacter = Container.expand(function () {
-  var self = Container.call(this);
-  var characterGraphics = self.attachAsset('jetpackCharacter', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speedY = 0;
-  self.gravity = 0.5;
-  self.flapStrength = -10;
-  self.update = function () {
-    self.speedY += self.gravity;
-    self.y += self.speedY;
-    if (self.y > 2732 - characterGraphics.height / 2) {
-      self.y = 2732 - characterGraphics.height / 2;
-      self.speedY = 0;
-    }
-  };
-  self.flap = function () {
-    self.speedY = self.flapStrength;
-  };
+	var self = Container.call(this);
+	var characterGraphics = self.attachAsset('jetpackCharacter', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speedY = 0;
+	self.gravity = 0.5;
+	self.flapStrength = -10;
+	self.update = function () {
+		self.speedY += self.gravity;
+		self.y += self.speedY;
+		if (self.y > 2732 - characterGraphics.height / 2) {
+			self.y = 2732 - characterGraphics.height / 2;
+			self.speedY = 0;
+		}
+	};
+	self.flap = function () {
+		self.speedY = self.flapStrength;
+	};
 });
 // Obstacle class
 var Obstacle = Container.expand(function () {
-  var self = Container.call(this);
-  var obstacleGraphics = self.attachAsset('obstacle', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speedX = -5;
-  self.update = function () {
-    self.x += self.speedX;
-    if (self.x < -obstacleGraphics.width / 2) {
-      self.destroy();
-    }
-  };
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speedX = -5;
+	self.update = function () {
+		self.x += self.speedX;
+		if (self.x < -obstacleGraphics.width / 2) {
+			self.destroy();
+		}
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x87CEEB // Sky blue background
+	backgroundColor: 0x87CEEB // Sky blue background
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
+var background = game.addChild(LK.getAsset('background', {
+	anchorX: 0,
+	anchorY: 0
+}));
 var jetpackCharacter = game.addChild(new JetpackCharacter());
 jetpackCharacter.x = 200;
 jetpackCharacter.y = 1366;
 var obstacles = [];
 var coins = [];
 var score = 0;
 var scoreTxt = new Text2('Score: 0', {
-  size: 100,
-  fill: 0xFFFFFF
+	size: 100,
+	fill: 0xFFFFFF
 });
 scoreTxt.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreTxt);
 game.down = function (x, y, obj) {
-  jetpackCharacter.flap();
+	jetpackCharacter.flap();
 };
 game.update = function () {
-  jetpackCharacter.update();
-  if (LK.ticks % 100 == 0) {
-    var newObstacle = new Obstacle();
-    newObstacle.x = 2048 + newObstacle.width / 2;
-    newObstacle.y = Math.random() * (2732 - 400) + 200;
-    obstacles.push(newObstacle);
-    game.addChild(newObstacle);
-  }
-  if (LK.ticks % 150 == 0) {
-    var newCoin = new Coin();
-    newCoin.x = 2048 + newCoin.width / 2;
-    newCoin.y = Math.random() * (2732 - 400) + 200;
-    coins.push(newCoin);
-    game.addChild(newCoin);
-  }
-  for (var i = obstacles.length - 1; i >= 0; i--) {
-    obstacles[i].update();
-    if (jetpackCharacter.intersects(obstacles[i])) {
-      LK.effects.flashScreen(0xff0000, 1000);
-      LK.showGameOver();
-    }
-  }
-  for (var j = coins.length - 1; j >= 0; j--) {
-    coins[j].update();
-    if (jetpackCharacter.intersects(coins[j])) {
-      score += 10;
-      scoreTxt.setText('Score: ' + score);
-      coins[j].destroy();
-      coins.splice(j, 1);
-    }
-  }
+	jetpackCharacter.update();
+	if (LK.ticks % 100 == 0) {
+		var newObstacle = new Obstacle();
+		newObstacle.x = 2048 + newObstacle.width / 2;
+		newObstacle.y = Math.random() * (2732 - 400) + 200;
+		obstacles.push(newObstacle);
+		game.addChild(newObstacle);
+	}
+	if (LK.ticks % 150 == 0) {
+		var newCoin = new Coin();
+		newCoin.x = 2048 + newCoin.width / 2;
+		newCoin.y = Math.random() * (2732 - 400) + 200;
+		coins.push(newCoin);
+		game.addChild(newCoin);
+	}
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		obstacles[i].update();
+		if (jetpackCharacter.intersects(obstacles[i])) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+		}
+	}
+	for (var j = coins.length - 1; j >= 0; j--) {
+		coins[j].update();
+		if (jetpackCharacter.intersects(coins[j])) {
+			score += 10;
+			scoreTxt.setText('Score: ' + score);
+			coins[j].destroy();
+			coins.splice(j, 1);
+		}
+	}
 };
\ No newline at end of file