/**** 
* Classes
****/ 
var Background = Container.expand(function () {
	var self = Container.call(this);
	var backgroundGraphics = self.attachAsset('background', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.x = 2048 / 2;
	self.y = 2732 / 2;
});
var Food = Container.expand(function () {
	var self = Container.call(this);
	var foodGraphics = self.attachAsset('food', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732) {
			self.destroy();
			var index = obstacles.indexOf(self);
			if (index > -1) {
				obstacles.splice(index, 1);
			}
		}
	};
});
var Food2m = Container.expand(function () {
	var self = Container.call(this);
	var food2mGraphics = self.attachAsset('food2m', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732) {
			self.destroy();
			var index = obstacles.indexOf(self);
			if (index > -1) {
				obstacles.splice(index, 1);
			}
		}
	};
});
//<Assets used in the game will automatically appear here>
// Hero class
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.update = function () {
		// Hero update logic
		if (self.x < 0) {
			self.x = 0;
		} else if (self.x > 2048) {
			self.x = 2048;
		}
	};
	// Removed jump logic
});
// Obstacle class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732) {
			self.destroy();
		}
	};
});
var Obstacle2m = Container.expand(function () {
	var self = Container.call(this);
	var obstacle2mGraphics = self.attachAsset('obstacle2m', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	self.update = function () {
		self.y += self.speed;
		if (self.y > 2732) {
			self.destroy();
		}
	};
});
var Obstacle3m = Container.expand(function () {
	var self = Container.call(this);
	var obstacle3mGraphics = self.attachAsset('obstacle3m', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 3;
	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
});

/**** 
* Game Code
****/ 
var background = new Background();
game.addChild(background);
var hero;
var obstacles = [];
var scoreTxt;
var score = 0;
var foodCounter = 0;
var timeTxt;
var timeElapsed = -6000;
var gameSpeed = 5;
// Initialize hero
function initHero() {
	hero = new Hero();
	hero.x = 1024; // Center horizontally
	hero.y = 2500;
	game.addChild(hero);
}
// Initialize score text
function initScore() {
	scoreTxt = new Text2('0', {
		size: 150,
		fill: "#ffffff"
	});
	scoreTxt.anchor.set(0.5, 0);
	LK.gui.top.addChild(scoreTxt);
	foodCounterTxt = new Text2('0', {
		size: 150,
		fill: "#ffffff"
	});
	foodCounterTxt.anchor.set(0, 1);
	LK.gui.bottomLeft.addChild(foodCounterTxt);
}
// Update score
function updateScore() {
	score += 1;
	scoreTxt.setText(score);
}
// Spawn obstacle
function spawnObstacle() {
	var randomValue = Math.random();
	if (randomValue < 0.25) {
		var obstacle = new Obstacle();
		obstacle.x = Math.random() * 2048;
		obstacle.y = -obstacle.height / 2;
		obstacles.push(obstacle);
		game.addChild(obstacle);
	} else if (randomValue < 0.5) {
		var food = new Food();
		food.x = Math.random() * 2048;
		food.y = -food.height / 2;
		obstacles.push(food);
		game.addChild(food);
	} else if (randomValue < 0.75) {
		var obstacle2m = new Obstacle2m();
		obstacle2m.x = Math.random() * 2048;
		obstacle2m.y = -obstacle2m.height / 2;
		obstacles.push(obstacle2m);
		game.addChild(obstacle2m);
	} else if (randomValue < 0.875) {
		var obstacle3m = new Obstacle3m();
		obstacle3m.x = Math.random() * 2048;
		obstacle3m.y = -obstacle3m.height / 2;
		obstacles.push(obstacle3m);
		game.addChild(obstacle3m);
	} else {
		var food2m = new Food2m();
		food2m.x = Math.random() * 2048;
		food2m.y = -food2m.height / 2;
		obstacles.push(food2m);
		game.addChild(food2m);
	}
}
// Handle game over
function handleGameOver() {
	LK.effects.flashScreen(0xff0000, 1000);
	LK.showGameOver();
}
// Handle move event
function handleMove(x, y, obj) {
	if (hero) {
		hero.x = x;
	}
}
// Handle down event
function handleDown(x, y, obj) {
	// Removed call to hero jump
}
// Game update function
game.update = function () {
	// Update hero
	if (hero) {
		hero.update();
	}
	// Update obstacles
	for (var i = obstacles.length - 1; i >= 0; i--) {
		obstacles[i].update();
		if (hero && obstacles[i] instanceof Obstacle && hero.intersects(obstacles[i])) {
			handleGameOver();
		} else if (hero && (obstacles[i] instanceof Food || obstacles[i] instanceof Food2m) && hero.intersects(obstacles[i])) {
			obstacles[i].destroy();
			obstacles.splice(i, 1);
			updateScore();
			foodCounter += 1;
			foodCounterTxt.setText(foodCounter);
			timeElapsed += 100; // Add 100 to the time counter
			timeTxt.setText(timeElapsed); // Update the time counter text
			if (foodCounter === 10) {
				background.attachAsset('background2', {
					anchorX: 0.5,
					anchorY: 0.5
				});
				LK.setTimeout(function () {
					background.attachAsset('background', {
						anchorX: 0.5,
						anchorY: 0.5
					});
				}, 5000);
			}
		}
	}
	// Spawn new obstacle
	if (LK.ticks % (180 / gameSpeed) == 0) {
		spawnObstacle();
	}
	// Update score
	if (LK.ticks % 60 == 0) {
		updateScore();
	}
};
// Initialize game elements
initHero();
initScore();
initTimeCounter();
// Set event listeners
game.move = handleMove;
game.down = handleDown;
// Initialize time counter text
function initTimeCounter() {
	timeTxt = new Text2(timeElapsed.toString(), {
		size: 150,
		fill: "#ffffff"
	});
	timeTxt.anchor.set(1, 0);
	LK.gui.topRight.addChild(timeTxt);
	timeTxt.setText(timeElapsed); // Set initial time
	// Update time counter every second
	if (LK.ticks % 60 == 0) {
		updateTimeCounter();
	}
}
// Update time counter
function updateTimeCounter() {
	timeElapsed += 1;
	timeTxt.setText(timeElapsed);
}

===================================================================
--- original.js
+++ change.js
@@ -224,8 +224,20 @@
 			foodCounter += 1;
 			foodCounterTxt.setText(foodCounter);
 			timeElapsed += 100; // Add 100 to the time counter
 			timeTxt.setText(timeElapsed); // Update the time counter text
+			if (foodCounter === 10) {
+				background.attachAsset('background2', {
+					anchorX: 0.5,
+					anchorY: 0.5
+				});
+				LK.setTimeout(function () {
+					background.attachAsset('background', {
+						anchorX: 0.5,
+						anchorY: 0.5
+					});
+				}, 5000);
+			}
 		}
 	}
 	// Spawn new obstacle
 	if (LK.ticks % (180 / gameSpeed) == 0) {