===================================================================
--- original.js
+++ change.js
@@ -27,8 +27,20 @@
 			self.velocity = 0;
 		}
 	};
 });
+// Cloud class
+var Cloud = Container.expand(function () {
+	var self = Container.call(this);
+	var cloudGraphics = self.attachAsset('cloud', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -2;
+	self.move = function () {
+		self.x += self.speed;
+	};
+});
 // Pipe class
 var Pipe = Container.expand(function (isTop, height) {
 	var self = Container.call(this);
 	var pipeGraphics = self.attachAsset(isTop ? 'pipeTop' : 'pipeBottom', {
@@ -60,8 +72,17 @@
 	bird.x = 2048 / 4;
 	bird.y = 2732 / 2;
 	game.addChild(bird);
 }
+// Initialize clouds
+var clouds = [];
+for (var i = 0; i < 5; i++) {
+	var cloud = new Cloud();
+	cloud.x = Math.random() * 2048;
+	cloud.y = Math.random() * 2732;
+	clouds.push(cloud);
+	game.addChild(cloud);
+}
 // Function to add pipes
 function addPipe() {
 	var topPipeHeight = Math.floor(Math.random() * (2732 - gap)) + 100; // Random height for top pipe
 	var bottomPipeHeight = 2732 - topPipeHeight - gap;
@@ -116,5 +137,13 @@
 	}
 	bird.update();
 	updatePipes();
 	checkCollision();
+	// Update clouds
+	for (var i = clouds.length - 1; i >= 0; i--) {
+		clouds[i].move();
+		if (clouds[i].x < -200) {
+			clouds[i].x = 2048;
+			clouds[i].y = Math.random() * 2732;
+		}
+	}
 });
\ No newline at end of file