/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
// Define the Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -15;
	self.update = function () {
		self.y += self.speed;
	};
});
// Define the Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyShipSmall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 4;
	self.hp = 200;
	self.damage = 1;
	self.update = function () {
		self.y += self.speed;
	};
});
// Define the LargeEnemy class
var LargeEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyShipLarge', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 1;
	self.hp = 600;
	self.damage = 4;
	self.update = function () {
		self.y += self.speed;
	};
});
// Define the MediumEnemy class
var MediumEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyShipMedium', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.hp = 400;
	self.damage = 2;
	self.update = function () {
		self.y += self.speed;
	};
});
//<Assets used in the game will automatically appear here>
//<Write imports for supported plugins here>
// Define the Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('playerShip', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 10;
	self.update = function () {
		// Player update logic can be added here
	};
});
// Define the SmallEnemy class
var SmallEnemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemyShipSmall', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.hp = 100;
	self.update = function () {
		self.y += self.speed;
	};
});
// Define the StarBackground class
var StarBackground = Container.expand(function () {
	var self = Container.call(this);
	var starBackgroundGraphics = self.attachAsset('starBackground', {
		anchorX: 0.5,
		anchorY: 0
	});
	self.speed = .5;
	self.update = function () {
		self.y += self.speed;
		if (self.y >= 2732) {
			self.y = -2732;
		}
	};
});
// Define the ScoreChange class
var ScoreChange = Text2.expand(function (fillValue) {
	var self = Text2.call(this, '', {
		size: 100,
		fill: fillValue
	});
	self.anchor.set(0.5, 0);
	self.alpha = 1;
	self.update = function () {
		if (self.alpha > 0) {
			self.alpha -= 0.01;
			self.y += 1;
		} else {
			self.destroy();
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x030303 //Init game with black background 
});

/**** 
* Game Code
****/ 
//<Assets used in the game will automatically appear here>
// Initialize score counter
var score = 0;
var scoreText = new Text2(score.toString(), {
	size: 100,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
// Initialize player
// Initialize star background
var starBackground1 = game.addChild(new StarBackground());
starBackground1.x = 2048 / 2;
starBackground1.y = 2732 / 2;
var starBackground2 = game.addChild(new StarBackground());
starBackground2.x = 2048 / 2;
starBackground2.y = -2732 / 2;
var player = game.addChild(new Player());
player.x = 2048 / 2;
player.y = 2732 - 200;
// Arrays to keep track of bullets and enemies
var bullets = [];
var enemies = [];
// Handle player movement
game.move = function (x, y, obj) {
	player.x = x;
	player.y = y;
};
// Spawn enemies at intervals
var enemySpawnInterval = LK.setInterval(function () {
	var enemyTypes = [Enemy, Enemy, Enemy, Enemy, Enemy, Enemy, MediumEnemy, MediumEnemy, MediumEnemy, LargeEnemy];
	var randomEnemy = enemyTypes[Math.floor(Math.random() * enemyTypes.length)];
	var enemy = new randomEnemy();
	enemy.x = Math.random() * 2048;
	enemy.y = -50;
	enemies.push(enemy);
	game.addChild(enemy);
}, Math.floor(Math.random() * 2000) + 500);
// Fire bullets at intervals
var bulletFireInterval = LK.setInterval(function () {
	var bullet = new Bullet();
	bullet.x = player.x;
	bullet.y = player.y;
	bullets.push(bullet);
	game.addChild(bullet);
}, 300);
// Update game state
game.update = function () {
	// Update star backgrounds
	starBackground1.update();
	starBackground2.update();
	// Update bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		bullet.update();
		if (bullet.y < -50) {
			bullet.destroy();
			bullets.splice(i, 1);
		}
	}
	// Update enemies
	for (var j = enemies.length - 1; j >= 0; j--) {
		var enemy = enemies[j];
		enemy.update();
		if (enemy.y > 2732 + 50) {
			var oldScore = score;
			score -= enemy.damage; // Reduce score by enemy's damage
			scoreText.setText(score.toString()); // Update score text
			var scoreChange = new ScoreChange(score - oldScore > 0 ? 0x00FF00 : 0xFF0000);
			scoreChange.setText((score - oldScore).toString());
			scoreChange.x = 1024;
			scoreChange.y = scoreText.y + scoreText.height + 30;
			game.addChild(scoreChange);
			if (score < 1) {
				LK.showGameOver();
			}
			enemy.destroy();
			enemies.splice(j, 1);
		}
	}
	// Check for collisions
	for (var k = bullets.length - 1; k >= 0; k--) {
		var bullet = bullets[k];
		for (var l = enemies.length - 1; l >= 0; l--) {
			var enemy = enemies[l];
			if (bullet.intersects(enemy)) {
				bullet.destroy();
				bullets.splice(k, 1);
				// Add sparkles animation at the point of intersection
				var sparkles = LK.getAsset('sparkles', {
					anchorX: 0.5,
					anchorY: 0.5,
					x: enemy.x,
					y: enemy.y
				});
				game.addChild(sparkles);
				tween(sparkles, {
					alpha: 0
				}, {
					duration: 500,
					onFinish: function onFinish() {
						sparkles.destroy();
					}
				});
				enemy.hp -= 100; // Reduce enemy HP by 40
				if (enemy.hp <= 0) {
					// If enemy HP is 0 or less, destroy it
					enemy.destroy();
					enemies.splice(l, 1);
					// Increase score by enemy's damage and update score text
					var oldScore = score;
					score += enemy.damage;
					scoreText.setText(score.toString());
					var scoreChange = new ScoreChange(score - oldScore > 0 ? 0x00FF00 : 0xFF0000);
					var plusSign = score - oldScore > 0 ? '+' : '';
					scoreChange.setText(plusSign + (score - oldScore).toString());
					scoreChange.x = 1024;
					scoreChange.y = scoreText.y + scoreText.height + 30;
					game.addChild(scoreChange);
				}
				break;
			}
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -1,5 +1,10 @@
 /**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
 * Classes
 ****/ 
 // Define the Bullet class
 var Bullet = Container.expand(function () {
@@ -124,8 +129,9 @@
 
 /**** 
 * Game Code
 ****/ 
+//<Assets used in the game will automatically appear here>
 // Initialize score counter
 var score = 0;
 var scoreText = new Text2(score.toString(), {
 	size: 100,