===================================================================
--- original.js
+++ change.js
@@ -16,8 +16,38 @@
 			self.y = 0; // Reset position if it goes off screen
 		}
 	};
 });
+// Cloud class to represent clouds in the background
+var Cloud = Container.expand(function () {
+	var self = Container.call(this);
+	var cloudGraphics = self.attachAsset('cloud', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -0.5;
+	self.update = function () {
+		self.x += self.speed;
+		if (self.x < 0) {
+			self.x = 2048; // Reset position if it goes off screen
+		}
+	};
+});
+// Grass class to represent grass in the background
+var Grass = Container.expand(function () {
+	var self = Container.call(this);
+	var grassGraphics = self.attachAsset('grass', {
+		anchorX: 0,
+		anchorY: 1
+	});
+	self.speed = -2;
+	self.update = function () {
+		self.x += self.speed;
+		if (self.x < 0) {
+			self.x = 2048; // Reset position if it goes off screen
+		}
+	};
+});
 // Obstacle class to represent obstacles in the sky
 var Obstacle = Container.expand(function () {
 	var self = Container.call(this);
 	var obstacleGraphics = self.attachAsset('obstacle', {
@@ -31,8 +61,23 @@
 			self.x = 2048; // Reset position if it goes off screen
 		}
 	};
 });
+// Tree class to represent trees in the background
+var Tree = Container.expand(function () {
+	var self = Container.call(this);
+	var treeGraphics = self.attachAsset('tree', {
+		anchorX: 0.5,
+		anchorY: 1
+	});
+	self.speed = -1;
+	self.update = function () {
+		self.x += self.speed;
+		if (self.x < 0) {
+			self.x = 2048; // Reset position if it goes off screen
+		}
+	};
+});
 
 /**** 
 * Initialize Game
 ****/ 
@@ -55,8 +100,29 @@
 	obstacle.y = Math.random() * 2732; // Random vertical position
 	obstacles.push(obstacle);
 	game.addChild(obstacle);
 }
+// Initialize trees, clouds, and grass
+var trees = [];
+for (var i = 0; i < 5; i++) {
+	var tree = new Tree();
+	tree.x = Math.random() * 2048;
+	tree.y = 2732;
+	trees.push(tree);
+	game.addChild(tree);
+}
+var clouds = [];
+for (var i = 0; i < 5; i++) {
+	var cloud = new Cloud();
+	cloud.x = Math.random() * 2048;
+	cloud.y = Math.random() * 1366;
+	clouds.push(cloud);
+	game.addChild(cloud);
+}
+var grass = new Grass();
+grass.x = 0;
+grass.y = 2732;
+game.addChild(grass);
 // Handle touch events to make the bird fly upwards
 game.down = function (x, y, obj) {
 	bird.speed = -10; // Move bird upwards
 };