===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,333 @@
-/****
+/**** 
+* 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;
+	self.fireTimer = Math.random() * 120 + 60; // Random fire delay
+	self.movePattern = Math.floor(Math.random() * 3); // 0: straight, 1: sine wave, 2: zigzag
+	self.patternTimer = 0;
+	self.update = function () {
+		// Movement patterns
+		if (self.movePattern === 1) {
+			// Sine wave movement
+			self.patternTimer += 0.1;
+			self.x += Math.sin(self.patternTimer) * 2;
+		} else if (self.movePattern === 2) {
+			// Zigzag movement
+			self.patternTimer++;
+			if (self.patternTimer % 40 < 20) {
+				self.x += 1;
+			} else {
+				self.x -= 1;
+			}
+		}
+		self.y += self.speed;
+		// Keep enemy within screen bounds
+		if (self.x < 30) self.x = 30;
+		if (self.x > 2018) self.x = 2018;
+		// Firing
+		self.fireTimer--;
+		if (self.fireTimer <= 0 && Math.random() < 0.3) {
+			self.fireTimer = Math.random() * 180 + 120;
+			fireEnemyBullet();
+		}
+	};
+	function fireEnemyBullet() {
+		var bullet = new EnemyBullet();
+		bullet.x = self.x;
+		bullet.y = self.y + 40;
+		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 = 6;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	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 = -12;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var PlayerShip = Container.expand(function () {
+	var self = Container.call(this);
+	var shipGraphics = self.attachAsset('playerShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 8;
+	self.fireRate = 15; // Fire every 15 ticks
+	self.fireTimer = 0;
+	self.powerUpTimer = 0;
+	self.powerUpType = null;
+	self.update = function () {
+		// Handle firing
+		self.fireTimer++;
+		var currentFireRate = self.powerUpType === 'rapidFire' ? 8 : self.fireRate;
+		if (self.fireTimer >= currentFireRate) {
+			self.fireTimer = 0;
+			fireBullet();
+		}
+		// Handle power-up timer
+		if (self.powerUpTimer > 0) {
+			self.powerUpTimer--;
+			if (self.powerUpTimer <= 0) {
+				self.powerUpType = null;
+				shipGraphics.tint = 0xFFFFFF;
+			}
+		}
+	};
+	function fireBullet() {
+		var bullet = new PlayerBullet();
+		bullet.x = self.x;
+		bullet.y = self.y - 50;
+		playerBullets.push(bullet);
+		game.addChild(bullet);
+		LK.getSound('shoot').play();
+	}
+	self.applyPowerUp = function (type) {
+		self.powerUpType = type;
+		self.powerUpTimer = 300; // 5 seconds at 60fps
+		if (type === 'rapidFire') {
+			shipGraphics.tint = 0x00FFFF;
+		}
+	};
+	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.rotationSpeed = 0.1;
+	self.type = 'rapidFire';
+	self.update = function () {
+		self.y += self.speed;
+		self.rotation += self.rotationSpeed;
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x000011
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var player;
+var playerBullets = [];
+var enemies = [];
+var enemyBullets = [];
+var powerUps = [];
+var enemySpawnTimer = 0;
+var enemySpawnRate = 90;
+var waveNumber = 1;
+var difficultyTimer = 0;
+// UI Elements
+var scoreTxt = new Text2('0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+var waveTxt = new Text2('Wave 1', {
+	size: 40,
+	fill: 0xFFFF00
+});
+waveTxt.anchor.set(1, 0);
+LK.gui.topRight.addChild(waveTxt);
+waveTxt.x = -20;
+waveTxt.y = 80;
+// Initialize player
+player = new PlayerShip();
+player.x = 1024;
+player.y = 2500;
+game.addChild(player);
+// Input handling
+var dragTarget = null;
+game.down = function (x, y, obj) {
+	dragTarget = player;
+	handleMove(x, y, obj);
+};
+game.up = function (x, y, obj) {
+	dragTarget = null;
+};
+function handleMove(x, y, obj) {
+	if (dragTarget) {
+		dragTarget.x = x;
+		// Keep player within screen bounds
+		if (dragTarget.x < 40) dragTarget.x = 40;
+		if (dragTarget.x > 2008) dragTarget.x = 2008;
+	}
+}
+game.move = handleMove;
+// Spawn enemy function
+function spawnEnemy() {
+	var enemy = new Enemy();
+	enemy.x = Math.random() * 1800 + 124;
+	enemy.y = -50;
+	enemy.speed = Math.random() * 2 + 1 + waveNumber * 0.2;
+	enemies.push(enemy);
+	game.addChild(enemy);
+}
+// Spawn power-up function
+function spawnPowerUp(x, y) {
+	if (Math.random() < 0.15) {
+		// 15% chance
+		var powerUp = new PowerUp();
+		powerUp.x = x;
+		powerUp.y = y;
+		powerUps.push(powerUp);
+		game.addChild(powerUp);
+	}
+}
+// Main game update
+game.update = function () {
+	// Update difficulty
+	difficultyTimer++;
+	if (difficultyTimer >= 1800) {
+		// Every 30 seconds
+		difficultyTimer = 0;
+		waveNumber++;
+		enemySpawnRate = Math.max(30, enemySpawnRate - 5);
+		waveTxt.setText('Wave ' + waveNumber);
+		LK.effects.flashScreen(0x00FF00, 500);
+	}
+	// Spawn enemies
+	enemySpawnTimer++;
+	if (enemySpawnTimer >= enemySpawnRate) {
+		enemySpawnTimer = 0;
+		spawnEnemy();
+	}
+	// 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 >= -20 && bullet.y < -20) {
+			bullet.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with enemies
+		var hit = false;
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			if (bullet.intersects(enemies[j])) {
+				LK.setScore(LK.getScore() + 10);
+				scoreTxt.setText(LK.getScore());
+				LK.getSound('enemyHit').play();
+				LK.effects.flashObject(enemies[j], 0xFFFFFF, 200);
+				// Spawn power-up chance
+				spawnPowerUp(enemies[j].x, enemies[j].y);
+				enemies[j].destroy();
+				enemies.splice(j, 1);
+				bullet.destroy();
+				playerBullets.splice(i, 1);
+				hit = true;
+				break;
+			}
+		}
+		if (!hit) {
+			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;
+		if (enemy.lastIntersecting === undefined) enemy.lastIntersecting = false;
+		// Remove enemies that go off screen
+		if (enemy.lastY <= 2800 && enemy.y > 2800) {
+			enemy.destroy();
+			enemies.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		var currentIntersecting = enemy.intersects(player);
+		if (!enemy.lastIntersecting && currentIntersecting) {
+			LK.getSound('playerHit').play();
+			LK.effects.flashScreen(0xFF0000, 1000);
+			LK.showGameOver();
+		}
+		enemy.lastY = enemy.y;
+		enemy.lastIntersecting = currentIntersecting;
+	}
+	// 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;
+		if (bullet.lastIntersecting === undefined) bullet.lastIntersecting = false;
+		// Remove bullets that go off screen
+		if (bullet.lastY <= 2800 && bullet.y > 2800) {
+			bullet.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		var currentIntersecting = bullet.intersects(player);
+		if (!bullet.lastIntersecting && currentIntersecting) {
+			LK.getSound('playerHit').play();
+			LK.effects.flashScreen(0xFF0000, 1000);
+			LK.showGameOver();
+		}
+		bullet.lastY = bullet.y;
+		bullet.lastIntersecting = currentIntersecting;
+	}
+	// 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;
+		if (powerUp.lastIntersecting === undefined) powerUp.lastIntersecting = false;
+		// Remove power-ups that go off screen
+		if (powerUp.lastY <= 2800 && powerUp.y > 2800) {
+			powerUp.destroy();
+			powerUps.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		var currentIntersecting = powerUp.intersects(player);
+		if (!powerUp.lastIntersecting && currentIntersecting) {
+			player.applyPowerUp(powerUp.type);
+			LK.getSound('powerUpCollect').play();
+			LK.effects.flashObject(player, 0x00FFFF, 500);
+			powerUp.destroy();
+			powerUps.splice(i, 1);
+			continue;
+		}
+		powerUp.lastY = powerUp.y;
+		powerUp.lastIntersecting = currentIntersecting;
+	}
+};
\ No newline at end of file