===================================================================
--- original.js
+++ change.js
@@ -1,91 +1,91 @@
-/****
+/**** 
 * Classes
-****/
+****/ 
 // The assets will be automatically created and loaded by the LK engine based on their usage in the code.
 // For example, car, obstacle, and road assets will be initialized when they are used in the game logic.
 // Car class to represent the player's car
 var Car = Container.expand(function () {
-  var self = Container.call(this);
-  var carGraphics = self.attachAsset('car', {
-    anchorX: 0.5,
-    anchorY: 0.5
-  });
-  self.lane = 1; // Start in the middle lane
-  self.moveLeft = function () {
-    if (self.lane > 0) {
-      self.lane--;
-      self.x -= 2048 / 3; // Move to the left lane
-    }
-  };
-  self.moveRight = function () {
-    if (self.lane < 2) {
-      self.lane++;
-      self.x += 2048 / 3; // Move to the right lane
-    }
-  };
+	var self = Container.call(this);
+	var carGraphics = self.attachAsset('car', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.lane = 1; // Start in the middle lane
+	self.moveLeft = function () {
+		if (self.lane > 0) {
+			self.lane--;
+			self.x -= 2048 / 3; // Move to the left lane
+		}
+	};
+	self.moveRight = function () {
+		if (self.lane < 2) {
+			self.lane++;
+			self.x += 2048 / 3; // Move to the right lane
+		}
+	};
 });
 // Obstacle class to represent traffic obstacles
 var Obstacle = Container.expand(function () {
-  var self = Container.call(this);
-  var obstacleGraphics = self.attachAsset('obstacle', {
-    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 obstacleGraphics = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 5;
+	self.update = function () {
+		self.y += self.speed;
+		if (self.y > 2732) {
+			self.destroy();
+		}
+	};
 });
 
-/****
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-  backgroundColor: 0x000000 // Init game with black background
+	backgroundColor: 0x87CEEB // Init game with a day theme sky blue background
 });
 
-/****
+/**** 
 * Game Code
-****/
+****/ 
 var car = game.addChild(new Car());
 car.x = 2048 / 2;
 car.y = 2732 - 200;
 var obstacles = [];
-var spawnObstacle = function () {
-  var lane = Math.floor(Math.random() * 3);
-  var obstacle = new Obstacle();
-  obstacle.x = 2048 / 3 * lane + 2048 / 6;
-  obstacle.y = -100;
-  obstacles.push(obstacle);
-  game.addChild(obstacle);
+var spawnObstacle = function spawnObstacle() {
+	var lane = Math.floor(Math.random() * 3);
+	var obstacle = new Obstacle();
+	obstacle.x = 2048 / 3 * lane + 2048 / 6;
+	obstacle.y = -100;
+	obstacles.push(obstacle);
+	game.addChild(obstacle);
 };
-var checkCollision = function () {
-  for (var i = obstacles.length - 1; i >= 0; i--) {
-    if (car.intersects(obstacles[i])) {
-      LK.effects.flashScreen(0xff0000, 1000);
-      LK.showGameOver();
-    }
-  }
+var checkCollision = function checkCollision() {
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		if (car.intersects(obstacles[i])) {
+			LK.effects.flashScreen(0xff0000, 1000);
+			LK.showGameOver();
+		}
+	}
 };
 game.down = function (x, y, obj) {
-  if (x < 2048 / 2) {
-    car.moveLeft();
-  } else {
-    car.moveRight();
-  }
+	if (x < 2048 / 2) {
+		car.moveLeft();
+	} else {
+		car.moveRight();
+	}
 };
 game.update = function () {
-  if (LK.ticks % 60 == 0) {
-    spawnObstacle();
-  }
-  for (var i = obstacles.length - 1; i >= 0; i--) {
-    obstacles[i].update();
-    if (obstacles[i].y > 2732) {
-      obstacles.splice(i, 1);
-    }
-  }
-  checkCollision();
+	if (LK.ticks % 60 == 0) {
+		spawnObstacle();
+	}
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		obstacles[i].update();
+		if (obstacles[i].y > 2732) {
+			obstacles.splice(i, 1);
+		}
+	}
+	checkCollision();
 };
\ No newline at end of file