===================================================================
--- original.js
+++ change.js
@@ -1,75 +1,76 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 //<Assets used in the game will automatically appear here>
 // Define the Missile class
 var Missile = Container.expand(function () {
-  var self = Container.call(this);
-  var missileGraphics = self.attachAsset('missile', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.speed = 5;
-  self.update = function () {
-    self.y += self.speed;
-    if (self.y > 2732) {
-      self.destroy();
-    }
-  };
+	var self = Container.call(this);
+	var missileGraphics = self.attachAsset('missile', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 5;
+	self.update = function () {
+		self.y += self.speed;
+		if (self.y > 2732) {
+			self.destroy();
+		}
+	};
 });
 // Define the Player class
 var Player = Container.expand(function () {
-  var self = Container.call(this);
-  var playerGraphics = self.attachAsset('player', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.down = function (x, y, obj) {
-    self.x = x;
-    self.y = y;
-  };
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.down = function (x, y, obj) {
+		self.x = x;
+		self.y = y;
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x000000 //Init game with black background 
+	backgroundColor: 0x000000 //Init game with black background 
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
 // Initialize player
 var player = game.addChild(new Player());
 player.x = 2048 / 2;
 player.y = 2732 - 200;
 // Initialize missiles array
 var missiles = [];
 // Handle player movement
 game.down = function (x, y, obj) {
-  player.x = x;
-  player.y = y;
+	player.x = x;
+	player.y = y;
 };
 // Update game state
 game.update = function () {
-  // Spawn missiles
-  if (LK.ticks % 60 == 0) {
-    var newMissile = new Missile();
-    newMissile.x = Math.random() * 2048;
-    newMissile.y = -50;
-    missiles.push(newMissile);
-    game.addChild(newMissile);
-  }
-  // Update missiles
-  for (var i = missiles.length - 1; i >= 0; i--) {
-    if (missiles[i].intersects(player)) {
-      LK.effects.flashScreen(0xff0000, 1000);
-      LK.showGameOver();
-    }
-    if (missiles[i].y > 2732) {
-      missiles[i].destroy();
-      missiles.splice(i, 1);
-    }
-  }
+	// Spawn missiles
+	if (LK.ticks % 60 == 0) {
+		var newMissile = new Missile();
+		newMissile.x = Math.random() * 2048;
+		newMissile.y = -50;
+		missiles.push(newMissile);
+		game.addChild(newMissile);
+	}
+	// Update missiles
+	for (var i = missiles.length - 1; i >= 0; i--) {
+		if (missiles[i].intersects(player)) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.getSound('bgm').play();
+			LK.showGameOver();
+		}
+		if (missiles[i].y > 2732) {
+			missiles[i].destroy();
+			missiles.splice(i, 1);
+		}
+	}
 };
\ No newline at end of file