===================================================================
--- original.js
+++ change.js
@@ -1,98 +1,100 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 // Obstacle class
 var Obstacle = Container.expand(function () {
-  var self = Container.call(this);
-  var topObstacle = self.attachAsset('obstacleTop', {
-    anchorX: 0.5,
-    anchorY: 1
-  });
-  var bottomObstacle = self.attachAsset('obstacleBottom', {
-    anchorX: 0.5,
-    anchorY: 0
-  });
-  self.gap = 500;
-  bottomObstacle.y = topObstacle.y + topObstacle.height + self.gap;
-  self.move = function () {
-    self.x -= 2;
-  };
+	var self = Container.call(this);
+	var topObstacle = self.attachAsset('obstacleTop', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	var bottomObstacle = self.attachAsset('obstacleBottom', {
+		anchorX: 0.5,
+		anchorY: 0
+	});
+	self.gap = 500;
+	bottomObstacle.y = topObstacle.y + topObstacle.height + self.gap;
+	self.move = function () {
+		self.x -= 2;
+	};
 });
 // Assets will be automatically generated based on usage in the code.
 // Player class
 var Player = Container.expand(function () {
-  var self = Container.call(this);
-  var playerGraphics = self.attachAsset('player', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.velocityY = 0;
-  self.gravity = 0.25;
-  self.lift = -6;
-  self.flap = function () {
-    self.velocityY = self.lift;
-  };
-  self.update = function () {
-    self.velocityY += self.gravity;
-    self.y += self.velocityY;
-    if (self.y > 2732) {
-      self.y = 2732;
-      self.velocityY = 0;
-    }
-    if (self.y < 0) {
-      self.y = 0;
-      self.velocityY = 0;
-    }
-  };
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.velocityY = 0;
+	self.gravity = 0.25;
+	self.lift = -6;
+	self.flap = function () {
+		self.velocityY = self.lift;
+	};
+	self.update = function () {
+		self.velocityY += self.gravity;
+		self.y += self.velocityY;
+		if (self.y > 2732) {
+			self.y = 2732;
+			self.velocityY = 0;
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+		}
+		if (self.y < 0) {
+			self.y = 0;
+			self.velocityY = 0;
+		}
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x87CEEB // Light blue background to simulate sky
+	backgroundColor: 0x87CEEB // Light blue background to simulate sky
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
 var player = game.addChild(new Player());
 player.x = 2048 / 4;
 player.y = 2732 / 2;
 var obstacles = [];
 var score = 0;
 var scoreTxt = LK.gui.top.addChild(new Text2(score.toString(), {
-  size: 150,
-  fill: "#ffffff"
+	size: 150,
+	fill: "#ffffff"
 }));
 scoreTxt.anchor.set(0.5, 0);
 scoreTxt.x = 2048 / 2;
 function spawnObstacle() {
-  var obstacle = new Obstacle();
-  obstacle.x = 2048;
-  obstacle.y = Math.floor(Math.random() * (2732 - obstacle.gap));
-  obstacles.push(obstacle);
-  game.addChild(obstacle);
+	var obstacle = new Obstacle();
+	obstacle.x = 2048;
+	obstacle.y = Math.floor(Math.random() * (2732 - obstacle.gap));
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
 }
 LK.on('tick', function () {
-  player.update();
-  if (LK.ticks % 120 == 0) {
-    spawnObstacle();
-  }
-  for (var i = obstacles.length - 1; i >= 0; i--) {
-    obstacles[i].move();
-    if (obstacles[i].x + obstacles[i].width < 0) {
-      obstacles[i].destroy();
-      obstacles.splice(i, 1);
-      score += 1;
-      scoreTxt.setText(score.toString());
-    }
-    if (player.intersects(obstacles[i])) {
-      LK.effects.flashScreen(0xff0000, 1000);
-      LK.showGameOver();
-    }
-  }
+	player.update();
+	if (LK.ticks % 120 == 0) {
+		spawnObstacle();
+	}
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		obstacles[i].move();
+		if (obstacles[i].x + obstacles[i].width < 0) {
+			obstacles[i].destroy();
+			obstacles.splice(i, 1);
+			score += 1;
+			scoreTxt.setText(score.toString());
+		}
+		if (player.intersects(obstacles[i])) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+		}
+	}
 });
 game.on('down', function () {
-  player.flap();
+	player.flap();
 });
\ No newline at end of file