/**** 
* Classes
****/ 
var Bullet = Container.expand(function (startX, startY) {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.x = startX;
	self.y = startY;
	self.speed = -10;
	self.update = function () {
		self.y += self.speed;
		if (self.y < 0) {
			self.destroy();
		}
	};
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = Math.random() * 3 + 1; // Random speed between 1 and 4
	self.direction = Math.random() < 0.5 ? -1 : 1; // Random direction
	self.update = function () {
		self.y += self.speed;
		self.x += self.direction * self.speed; // Move horizontally
		if (self.x < 0 || self.x > 2048) {
			self.direction *= -1; // Change direction if hitting screen edge
		}
		if (self.y > 2732) {
			self.y = 0;
			self.x = Math.random() * 2048;
		}
	};
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.shoot = function () {
		var bullet = new Bullet(self.x, self.y - 50);
		game.addChild(bullet);
		bullets.push(bullet);
		LK.getSound('shoot').play();
	};
	self.update = function () {
		// Player movement logic
		if (self.x > 0) {
			self.x -= self.speed;
		}
		if (self.x < 2048) {
			self.x += self.speed;
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000 // Initialize game with black background
});

/**** 
* Game Code
****/ 
// Add shooting mechanism on touch
game.down = function (x, y, obj) {
	isTouching = true;
	touchStartX = x;
	player.shoot();
};
var isTouching = false;
var touchStartX = 0;
game.down = function (x, y, obj) {
	isTouching = true;
	touchStartX = x;
};
game.move = function (x, y, obj) {
	if (isTouching) {
		var deltaX = x - touchStartX;
		player.x += deltaX;
		touchStartX = x;
	}
};
game.up = function (x, y, obj) {
	isTouching = false;
};
var player = new Player();
game.addChild(player);
player.x = 1024;
player.y = 2500;
var enemies = [];
for (var i = 0; i < 5; i++) {
	var enemy = new Enemy();
	enemy.x = Math.random() * 2048;
	enemy.y = Math.random() * 1000;
	game.addChild(enemy);
	enemies.push(enemy);
}
var bullets = [];
game.update = function () {
	player.update();
	enemies.forEach(function (enemy) {
		enemy.update();
	});
	bullets.forEach(function (bullet, index) {
		bullet.update();
		if (bullet.y < 0) {
			bullets.splice(index, 1);
		} else {
			enemies.forEach(function (enemy, enemyIndex) {
				if (bullet.intersects(enemy)) {
					bullet.destroy();
					bullets.splice(index, 1);
					enemy.destroy();
					enemies.splice(enemyIndex, 1);
				}
			});
		}
	});
};

===================================================================
--- original.js
+++ change.js
@@ -22,11 +22,16 @@
 	var enemyGraphics = self.attachAsset('enemy', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	self.speed = 2;
+	self.speed = Math.random() * 3 + 1; // Random speed between 1 and 4
+	self.direction = Math.random() < 0.5 ? -1 : 1; // Random direction
 	self.update = function () {
 		self.y += self.speed;
+		self.x += self.direction * self.speed; // Move horizontally
+		if (self.x < 0 || self.x > 2048) {
+			self.direction *= -1; // Change direction if hitting screen edge
+		}
 		if (self.y > 2732) {
 			self.y = 0;
 			self.x = Math.random() * 2048;
 		}
@@ -65,9 +70,30 @@
 
 /**** 
 * Game Code
 ****/ 
-// Initialize assets used in this game.
+// Add shooting mechanism on touch
+game.down = function (x, y, obj) {
+	isTouching = true;
+	touchStartX = x;
+	player.shoot();
+};
+var isTouching = false;
+var touchStartX = 0;
+game.down = function (x, y, obj) {
+	isTouching = true;
+	touchStartX = x;
+};
+game.move = function (x, y, obj) {
+	if (isTouching) {
+		var deltaX = x - touchStartX;
+		player.x += deltaX;
+		touchStartX = x;
+	}
+};
+game.up = function (x, y, obj) {
+	isTouching = false;
+};
 var player = new Player();
 game.addChild(player);
 player.x = 1024;
 player.y = 2500;
@@ -88,7 +114,16 @@
 	bullets.forEach(function (bullet, index) {
 		bullet.update();
 		if (bullet.y < 0) {
 			bullets.splice(index, 1);
+		} else {
+			enemies.forEach(function (enemy, enemyIndex) {
+				if (bullet.intersects(enemy)) {
+					bullet.destroy();
+					bullets.splice(index, 1);
+					enemy.destroy();
+					enemies.splice(enemyIndex, 1);
+				}
+			});
 		}
 	});
 };
\ No newline at end of file