===================================================================
--- original.js
+++ change.js
@@ -1,99 +1,116 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 //<Assets used in the game will automatically appear here>
 // PuzzlePiece class to represent each piece of the puzzle
 var PuzzlePiece = Container.expand(function () {
-  var self = Container.call(this);
-  var pieceGraphics = self.attachAsset('piece', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.correctPosition = {
-    x: 0,
-    y: 0
-  };
-  self.isCorrect = false;
-  self.setCorrectPosition = function (x, y) {
-    self.correctPosition.x = x;
-    self.correctPosition.y = y;
-  };
-  self.checkPosition = function () {
-    if (Math.abs(self.x - self.correctPosition.x) < 10 && Math.abs(self.y - self.correctPosition.y) < 10) {
-      self.isCorrect = true;
-      self.x = self.correctPosition.x;
-      self.y = self.correctPosition.y;
-    } else {
-      self.isCorrect = false;
-    }
-  };
-  self.down = function (x, y, obj) {
-    dragNode = self;
-  };
-  self.up = function (x, y, obj) {
-    dragNode = null;
-    self.checkPosition();
-  };
-  return self;
+	var self = Container.call(this);
+	var pieceGraphics = self.attachAsset('piece', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.correctPosition = {
+		x: 0,
+		y: 0
+	};
+	self.isCorrect = false;
+	self.setCorrectPosition = function (x, y) {
+		self.correctPosition.x = x;
+		self.correctPosition.y = y;
+	};
+	self.checkPosition = function () {
+		if (Math.abs(self.x - self.correctPosition.x) < 10 && Math.abs(self.y - self.correctPosition.y) < 10) {
+			self.isCorrect = true;
+			self.x = self.correctPosition.x;
+			self.y = self.correctPosition.y;
+		} else {
+			self.isCorrect = false;
+		}
+	};
+	self.down = function (x, y, obj) {
+		dragNode = self;
+	};
+	self.up = function (x, y, obj) {
+		dragNode = null;
+		self.checkPosition();
+	};
+	return self;
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x000000 //Init game with black background 
+	backgroundColor: 0x000000 //Init game with black background
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
+var background = LK.getAsset('background', {
+	anchorX: 0.5,
+	anchorY: 0.5,
+	x: 2048 / 2,
+	y: 2732 / 2
+});
+game.addChild(background);
+var scoreTxt = new Text2('Level: 1', {
+	size: 100,
+	fill: "#ffffff"
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
 var pieces = [];
 var dragNode = null;
 var level = 1;
 var maxLevels = 80;
 var scoreTxt = new Text2('Level: 1', {
-  size: 100,
-  fill: "#ffffff"
+	size: 100,
+	fill: "#ffffff"
 });
 scoreTxt.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreTxt);
 function createPuzzle(level) {
-  // Clear previous pieces
-  pieces.forEach(piece => piece.destroy());
-  pieces = [];
-  // Create new pieces for the current level
-  for (var i = 0; i < level; i++) {
-    var piece = new PuzzlePiece();
-    piece.x = Math.random() * 2048;
-    piece.y = Math.random() * 2732;
-    piece.setCorrectPosition(100 + i * 150, 100 + i * 150);
-    pieces.push(piece);
-    game.addChild(piece);
-  }
+	// Clear previous pieces
+	pieces.forEach(function (piece) {
+		return piece.destroy();
+	});
+	pieces = [];
+	// Create new pieces for the current level
+	for (var i = 0; i < level; i++) {
+		var piece = new PuzzlePiece();
+		piece.x = Math.random() * 2048;
+		piece.y = Math.random() * 2732;
+		piece.setCorrectPosition(100 + i * 150, 100 + i * 150);
+		pieces.push(piece);
+		game.addChild(piece);
+	}
 }
 function handleMove(x, y, obj) {
-  if (dragNode) {
-    dragNode.x = x;
-    dragNode.y = y;
-  }
+	if (dragNode) {
+		dragNode.x = x;
+		dragNode.y = y;
+	}
 }
 game.move = handleMove;
 game.down = function (x, y, obj) {
-  handleMove(x, y, obj);
+	handleMove(x, y, obj);
 };
 game.up = function (x, y, obj) {
-  dragNode = null;
+	dragNode = null;
 };
 game.update = function () {
-  if (pieces.every(piece => piece.isCorrect)) {
-    if (level < maxLevels) {
-      level++;
-      scoreTxt.setText('Level: ' + level);
-      createPuzzle(level);
-    } else {
-      LK.showGameOver();
-    }
-  }
+	if (pieces.every(function (piece) {
+		return piece.isCorrect;
+	})) {
+		if (level < maxLevels) {
+			level++;
+			scoreTxt.setText('Level: ' + level);
+			createPuzzle(level);
+		} else {
+			LK.showGameOver();
+		}
+	}
 };
 // Initialize the first level
 createPuzzle(level);
\ No newline at end of file