===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,330 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var Enemy = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyGraphics = self.attachAsset('enemy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 2 + Math.random() * 3;
+	self.shootCooldown = Math.floor(Math.random() * 120) + 60;
+	self.movePattern = Math.floor(Math.random() * 3);
+	self.originalX = self.x;
+	self.time = 0;
+	self.update = function () {
+		self.time++;
+		// Movement patterns
+		if (self.movePattern === 0) {
+			// Straight down
+			self.y += self.speed;
+		} else if (self.movePattern === 1) {
+			// Zigzag
+			self.y += self.speed;
+			self.x += Math.sin(self.time * 0.1) * 2;
+		} else {
+			// Side to side
+			self.y += self.speed * 0.5;
+			self.x += Math.cos(self.time * 0.05) * 3;
+		}
+		// Keep enemies on screen horizontally
+		if (self.x < 50) self.x = 50;
+		if (self.x > 1998) self.x = 1998;
+		// Shooting
+		if (self.shootCooldown > 0) {
+			self.shootCooldown--;
+		}
+		if (self.shootCooldown <= 0 && self.y > 100 && self.y < 2000) {
+			self.shoot();
+			self.shootCooldown = Math.floor(Math.random() * 180) + 120;
+		}
+	};
+	self.shoot = function () {
+		var bullet = new EnemyBullet();
+		bullet.x = self.x;
+		bullet.y = self.y + 30;
+		enemyBullets.push(bullet);
+		game.addChild(bullet);
+	};
+	return self;
+});
+var EnemyBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('enemyBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 8;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerGraphics = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 3;
+	self.maxHealth = 3;
+	self.shootCooldown = 0;
+	self.powerLevel = 1;
+	self.update = function () {
+		if (self.shootCooldown > 0) {
+			self.shootCooldown--;
+		}
+		// Auto-shoot
+		if (self.shootCooldown <= 0) {
+			self.shoot();
+			self.shootCooldown = 15; // Shoot every 15 frames
+		}
+	};
+	self.shoot = function () {
+		var bullet = new PlayerBullet();
+		bullet.x = self.x;
+		bullet.y = self.y - 60;
+		playerBullets.push(bullet);
+		game.addChild(bullet);
+		LK.getSound('shoot').play();
+	};
+	self.takeDamage = function () {
+		self.health--;
+		LK.getSound('playerHit').play();
+		LK.effects.flashObject(self, 0xff0000, 500);
+		if (self.health <= 0) {
+			LK.showGameOver();
+		}
+	};
+	self.heal = function () {
+		if (self.health < self.maxHealth) {
+			self.health++;
+		}
+	};
+	return self;
+});
+var PlayerBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGraphics = self.attachAsset('playerBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -15;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var PowerUp = Container.expand(function () {
+	var self = Container.call(this);
+	var powerUpGraphics = self.attachAsset('powerUp', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 3;
+	self.time = 0;
+	self.update = function () {
+		self.time++;
+		self.y += self.speed;
+		self.rotation += 0.1;
+		// Floating effect
+		powerUpGraphics.y = Math.sin(self.time * 0.2) * 10;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x000033
+});
+
+/**** 
+* Game Code
+****/ 
+var player = null;
+var playerBullets = [];
+var enemies = [];
+var enemyBullets = [];
+var powerUps = [];
+var enemySpawnTimer = 0;
+var powerUpSpawnTimer = 0;
+var difficultyLevel = 1;
+var dragNode = null;
+// UI Elements
+var scoreTxt = new Text2('Score: 0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0, 0);
+scoreTxt.x = 120;
+scoreTxt.y = 50;
+LK.gui.topLeft.addChild(scoreTxt);
+var healthTxt = new Text2('Health: 3', {
+	size: 60,
+	fill: 0x00FF00
+});
+healthTxt.anchor.set(1, 0);
+healthTxt.x = -50;
+healthTxt.y = 50;
+LK.gui.topRight.addChild(healthTxt);
+// Initialize player
+player = new Player();
+player.x = 1024;
+player.y = 2400;
+game.addChild(player);
+// Game controls
+function handleMove(x, y, obj) {
+	if (dragNode) {
+		dragNode.x = x;
+		dragNode.y = y;
+		// Keep player on screen
+		if (dragNode.x < 40) dragNode.x = 40;
+		if (dragNode.x > 2008) dragNode.x = 2008;
+		if (dragNode.y < 200) dragNode.y = 200;
+		if (dragNode.y > 2600) dragNode.y = 2600;
+	}
+}
+game.move = handleMove;
+game.down = function (x, y, obj) {
+	dragNode = player;
+	handleMove(x, y, obj);
+};
+game.up = function (x, y, obj) {
+	dragNode = null;
+};
+// Main game loop
+game.update = function () {
+	// Update difficulty
+	if (LK.ticks % 1800 === 0) {
+		// Every 30 seconds
+		difficultyLevel++;
+	}
+	// Spawn enemies
+	enemySpawnTimer++;
+	var spawnRate = Math.max(60 - difficultyLevel * 5, 20);
+	if (enemySpawnTimer >= spawnRate) {
+		var enemy = new Enemy();
+		enemy.x = Math.random() * 1800 + 124;
+		enemy.y = -50;
+		enemy.speed += difficultyLevel * 0.5;
+		enemies.push(enemy);
+		game.addChild(enemy);
+		enemySpawnTimer = 0;
+	}
+	// Spawn power-ups
+	powerUpSpawnTimer++;
+	if (powerUpSpawnTimer >= 900) {
+		// Every 15 seconds
+		var powerUp = new PowerUp();
+		powerUp.x = Math.random() * 1800 + 124;
+		powerUp.y = -50;
+		powerUps.push(powerUp);
+		game.addChild(powerUp);
+		powerUpSpawnTimer = 0;
+	}
+	// Update and check player bullets
+	for (var i = playerBullets.length - 1; i >= 0; i--) {
+		var bullet = playerBullets[i];
+		if (bullet.lastY === undefined) bullet.lastY = bullet.y;
+		// Remove bullets that go off screen
+		if (bullet.lastY >= -30 && bullet.y < -30) {
+			bullet.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with enemies
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			var enemy = enemies[j];
+			if (bullet.intersects(enemy)) {
+				// Destroy both bullet and enemy
+				bullet.destroy();
+				playerBullets.splice(i, 1);
+				enemy.destroy();
+				enemies.splice(j, 1);
+				// Add score
+				LK.setScore(LK.getScore() + 10 * difficultyLevel);
+				scoreTxt.setText('Score: ' + LK.getScore());
+				LK.getSound('enemyHit').play();
+				break;
+			}
+		}
+		if (bullet.parent) {
+			bullet.lastY = bullet.y;
+		}
+	}
+	// Update and check enemy bullets
+	for (var i = enemyBullets.length - 1; i >= 0; i--) {
+		var bullet = enemyBullets[i];
+		if (bullet.lastY === undefined) bullet.lastY = bullet.y;
+		// Remove bullets that go off screen
+		if (bullet.lastY <= 2732 && bullet.y > 2732) {
+			bullet.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (bullet.intersects(player)) {
+			bullet.destroy();
+			enemyBullets.splice(i, 1);
+			player.takeDamage();
+			healthTxt.setText('Health: ' + player.health);
+			continue;
+		}
+		if (bullet.parent) {
+			bullet.lastY = bullet.y;
+		}
+	}
+	// Update and check enemies
+	for (var i = enemies.length - 1; i >= 0; i--) {
+		var enemy = enemies[i];
+		if (enemy.lastY === undefined) enemy.lastY = enemy.y;
+		// Remove enemies that go off screen
+		if (enemy.lastY <= 2732 && enemy.y > 2732) {
+			enemy.destroy();
+			enemies.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (enemy.intersects(player)) {
+			enemy.destroy();
+			enemies.splice(i, 1);
+			player.takeDamage();
+			healthTxt.setText('Health: ' + player.health);
+			continue;
+		}
+		if (enemy.parent) {
+			enemy.lastY = enemy.y;
+		}
+	}
+	// Update and check power-ups
+	for (var i = powerUps.length - 1; i >= 0; i--) {
+		var powerUp = powerUps[i];
+		if (powerUp.lastY === undefined) powerUp.lastY = powerUp.y;
+		// Remove power-ups that go off screen
+		if (powerUp.lastY <= 2732 && powerUp.y > 2732) {
+			powerUp.destroy();
+			powerUps.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (powerUp.intersects(player)) {
+			powerUp.destroy();
+			powerUps.splice(i, 1);
+			player.heal();
+			healthTxt.setText('Health: ' + player.health);
+			LK.getSound('powerup').play();
+			LK.effects.flashObject(player, 0x00ffff, 300);
+			continue;
+		}
+		if (powerUp.parent) {
+			powerUp.lastY = powerUp.y;
+		}
+	}
+};
\ No newline at end of file