/**** 
* Classes
****/ 
//<Assets used in the game will automatically appear here>
// Balloon class
var Balloon = Container.expand(function () {
	var self = Container.call(this);
	var balloonGraphics = self.attachAsset('balloon', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		// Balloon update logic
	};
});
// Coin class
var Coin = Container.expand(function () {
	var self = Container.call(this);
	var coinGraphics = self.attachAsset('coin', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.y += 5; // Move coin downwards
		if (self.y > 2732) {
			self.destroy();
		}
	};
});
// Obstacle class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.y += 7; // Move obstacle downwards
		self.x += Math.sin(LK.ticks / 30) * 5; // Move obstacle slightly left and right
		if (self.y > 2732) {
			self.destroy();
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB // Sky blue background
});

/**** 
* Game Code
****/ 
var balloon = game.addChild(new Balloon());
balloon.x = 1024; // Center horizontally
balloon.y = 2000; // Initial vertical position
var coins = [];
var obstacles = [];
var score = 0;
var scoreTxt = new Text2('0', {
	size: 150,
	fill: "#ffffff"
});
scoreTxt.anchor.set(0, 0);
LK.gui.topLeft.addChild(scoreTxt);
function spawnCoin() {
	var coin = new Coin();
	coin.x = Math.random() * 2048;
	coin.y = -50;
	coins.push(coin);
	game.addChild(coin);
}
function spawnObstacle() {
	var obstacle = new Obstacle();
	obstacle.x = Math.random() * 2048;
	obstacle.y = -50;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
game.down = function (x, y, obj) {
	balloon.x = x;
	balloon.y = y;
};
game.move = function (x, y, obj) {
	balloon.x = x;
	balloon.y = y;
};
game.update = function () {
	for (var i = coins.length - 1; i >= 0; i--) {
		if (balloon.intersects(coins[i])) {
			score += 1;
			scoreTxt.setText(score);
			coins[i].destroy();
			coins.splice(i, 1);
		}
	}
	for (var j = obstacles.length - 1; j >= 0; j--) {
		if (balloon.intersects(obstacles[j])) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
	}
	if (LK.ticks % 60 == 0) {
		spawnCoin();
	}
	if (LK.ticks % 90 == 0) {
		spawnObstacle();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -35,8 +35,9 @@
 		anchorY: 0.5
 	});
 	self.update = function () {
 		self.y += 7; // Move obstacle downwards
+		self.x += Math.sin(LK.ticks / 30) * 5; // Move obstacle slightly left and right
 		if (self.y > 2732) {
 			self.destroy();
 		}
 	};