===================================================================
--- original.js
+++ change.js
@@ -57,8 +57,19 @@
 	self.update = function () {
 		self.x += self.speed;
 	};
 });
+// Wood class to represent side obstacles
+var Wood = Container.expand(function () {
+	var self = Container.call(this);
+	var woodGraphics = self.attachAsset('wood', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.update = function () {
+		// Wood is static, no update logic needed
+	};
+});
 
 /**** 
 * Initialize Game
 ****/ 
@@ -90,8 +101,21 @@
 	bird.flap();
 };
 game.update = function () {
 	bird.update();
+	// Add wood obstacles to the sides of the game
+	if (!this.leftWood) {
+		this.leftWood = new Wood();
+		this.leftWood.x = 25; // Position on the left side
+		this.leftWood.y = 2732 / 2;
+		game.addChild(this.leftWood);
+	}
+	if (!this.rightWood) {
+		this.rightWood = new Wood();
+		this.rightWood.x = 2048 - 25; // Position on the right side
+		this.rightWood.y = 2732 / 2;
+		game.addChild(this.rightWood);
+	}
 	if (bird.y > 2732 || bird.y < 0) {
 		LK.showGameOver();
 	}
 	if (LK.ticks - lastLevelUpTime > levelInterval && currentLevel < maxLevels) {