===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,430 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+var EnemyBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('enemyBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 6;
+	self.damage = 1;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var EnemyJet = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('enemyJet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.health = 1;
+	self.speed = 2;
+	self.fireRate = 120;
+	self.fireTimer = Math.random() * 60;
+	self.canFireMissiles = false;
+	self.missileRate = 300;
+	self.missileTimer = Math.random() * 150;
+	self.update = function () {
+		self.y += self.speed;
+		if (self.fireTimer > 0) {
+			self.fireTimer--;
+		}
+		if (self.missileTimer > 0) {
+			self.missileTimer--;
+		}
+		// Fire bullets
+		if (self.fireTimer <= 0 && self.y > 0 && self.y < 2400) {
+			self.fireBullet();
+			self.fireTimer = self.fireRate + Math.random() * 60;
+		}
+		// Fire missiles (if capable)
+		if (self.canFireMissiles && self.missileTimer <= 0 && self.y > 0 && self.y < 2400) {
+			self.fireMissile();
+			self.missileTimer = self.missileRate + Math.random() * 120;
+		}
+	};
+	self.fireBullet = function () {
+		var bullet = new EnemyBullet();
+		bullet.x = self.x;
+		bullet.y = self.y + 30;
+		enemyBullets.push(bullet);
+		game.addChild(bullet);
+	};
+	self.fireMissile = function () {
+		var missile = new Missile();
+		missile.x = self.x;
+		missile.y = self.y + 30;
+		missiles.push(missile);
+		game.addChild(missile);
+		LK.getSound('missile').play();
+	};
+	self.takeDamage = function (damage) {
+		self.health -= damage;
+		if (self.health <= 0) {
+			self.destroy();
+			LK.getSound('explosion').play();
+			return true;
+		}
+		return false;
+	};
+	return self;
+});
+var Missile = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('missile', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 4;
+	self.damage = 2;
+	self.trackingSpeed = 0.5;
+	self.update = function () {
+		// Basic homing behavior
+		if (player) {
+			var dx = player.x - self.x;
+			var dy = player.y - self.y;
+			var distance = Math.sqrt(dx * dx + dy * dy);
+			if (distance > 0) {
+				self.x += dx / distance * self.trackingSpeed;
+				self.y += dy / distance * self.trackingSpeed;
+			}
+		}
+		self.y += self.speed;
+	};
+	return self;
+});
+var PlayerBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('playerBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -12;
+	self.damage = 1;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+var PlayerJet = Container.expand(function () {
+	var self = Container.call(this);
+	var graphics = self.attachAsset('playerJet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.maxHealth = 3;
+	self.health = 3;
+	self.speed = 8;
+	self.fireRate = 15;
+	self.fireTimer = 0;
+	self.invulnerable = false;
+	self.invulnerableTimer = 0;
+	self.update = function () {
+		if (self.fireTimer > 0) {
+			self.fireTimer--;
+		}
+		if (self.invulnerable) {
+			self.invulnerableTimer--;
+			if (self.invulnerableTimer <= 0) {
+				self.invulnerable = false;
+				graphics.alpha = 1;
+			} else {
+				graphics.alpha = 0.5;
+			}
+		}
+		// Auto-fire
+		if (self.fireTimer <= 0) {
+			self.fire();
+			self.fireTimer = self.fireRate;
+		}
+	};
+	self.fire = function () {
+		var bullet = new PlayerBullet();
+		bullet.x = self.x;
+		bullet.y = self.y - 30;
+		playerBullets.push(bullet);
+		game.addChild(bullet);
+		LK.getSound('shoot').play();
+	};
+	self.takeDamage = function (damage) {
+		if (self.invulnerable) return;
+		self.health -= damage;
+		self.invulnerable = true;
+		self.invulnerableTimer = 60;
+		LK.effects.flashObject(self, 0xFF0000, 500);
+		if (self.health <= 0) {
+			gameOver();
+		}
+		updateHealthDisplay();
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x001122
+});
+
+/**** 
+* Game Code
+****/ 
+// Game state variables
+var currentWave = 1;
+var maxWaves = 20;
+var waveEnemies = [];
+var enemiesSpawned = 0;
+var enemiesToSpawn = 5;
+var spawnTimer = 0;
+var spawnRate = 60;
+var waveComplete = false;
+var gameState = 'playing'; // 'playing', 'upgrading', 'gameover'
+// Game objects
+var player = null;
+var playerBullets = [];
+var enemyBullets = [];
+var missiles = [];
+var enemies = [];
+// UI elements
+var waveText = null;
+var healthText = null;
+var upgradeContainer = null;
+// Initialize player
+player = new PlayerJet();
+player.x = 1024;
+player.y = 2400;
+game.addChild(player);
+// Initialize UI
+waveText = new Text2('Wave: 1', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+waveText.anchor.set(0.5, 0);
+LK.gui.top.addChild(waveText);
+waveText.y = 50;
+healthText = new Text2('Health: 3', {
+	size: 50,
+	fill: 0xFF4444
+});
+healthText.anchor.set(0, 0);
+LK.gui.topRight.addChild(healthText);
+healthText.x = -200;
+healthText.y = 50;
+function updateHealthDisplay() {
+	healthText.setText('Health: ' + player.health);
+}
+function updateWaveDisplay() {
+	waveText.setText('Wave: ' + currentWave);
+}
+function spawnEnemy() {
+	var enemy = new EnemyJet();
+	enemy.x = Math.random() * 1800 + 124;
+	enemy.y = -50;
+	// Scale difficulty based on wave
+	enemy.health = Math.floor(currentWave / 5) + 1;
+	enemy.speed = 2 + currentWave * 0.2;
+	enemy.fireRate = Math.max(60 - currentWave * 2, 30);
+	// Enable missiles for later waves
+	if (currentWave >= 5) {
+		enemy.canFireMissiles = true;
+	}
+	enemies.push(enemy);
+	game.addChild(enemy);
+	enemiesSpawned++;
+}
+function startWave() {
+	currentWave++;
+	if (currentWave > maxWaves) {
+		LK.showYouWin();
+		return;
+	}
+	enemiesToSpawn = 5 + Math.floor(currentWave * 1.5);
+	enemiesSpawned = 0;
+	spawnTimer = 0;
+	waveComplete = false;
+	gameState = 'playing';
+	updateWaveDisplay();
+	// Hide upgrade menu if visible
+	if (upgradeContainer) {
+		upgradeContainer.destroy();
+		upgradeContainer = null;
+	}
+}
+function completeWave() {
+	if (currentWave >= maxWaves) {
+		LK.showYouWin();
+		return;
+	}
+	waveComplete = true;
+	gameState = 'upgrading';
+	showUpgradeMenu();
+}
+function showUpgradeMenu() {
+	upgradeContainer = new Container();
+	game.addChild(upgradeContainer);
+	var titleText = new Text2('Choose Upgrade', {
+		size: 80,
+		fill: 0xFFFF00
+	});
+	titleText.anchor.set(0.5, 0.5);
+	titleText.x = 1024;
+	titleText.y = 800;
+	upgradeContainer.addChild(titleText);
+	var upgrades = [{
+		text: 'Faster Firing',
+		action: function action() {
+			player.fireRate = Math.max(player.fireRate - 3, 5);
+		}
+	}, {
+		text: 'More Health',
+		action: function action() {
+			player.maxHealth++;
+			player.health = player.maxHealth;
+		}
+	}, {
+		text: 'Faster Movement',
+		action: function action() {
+			player.speed += 2;
+		}
+	}, {
+		text: 'Stronger Bullets',
+		action: function action() {/* Implement bullet upgrade */}
+	}];
+	for (var i = 0; i < 3; i++) {
+		var upgrade = upgrades[i];
+		var button = new Container();
+		var buttonBg = LK.getAsset('playerJet', {
+			anchorX: 0.5,
+			anchorY: 0.5,
+			scaleX: 3,
+			scaleY: 1.5
+		});
+		buttonBg.tint = 0x444444;
+		button.addChild(buttonBg);
+		var buttonText = new Text2(upgrade.text, {
+			size: 40,
+			fill: 0xFFFFFF
+		});
+		buttonText.anchor.set(0.5, 0.5);
+		button.addChild(buttonText);
+		button.x = 1024;
+		button.y = 1200 + i * 200;
+		button.upgrade = upgrade;
+		button.down = function (x, y, obj) {
+			obj.upgrade.action();
+			updateHealthDisplay();
+			startWave();
+		};
+		upgradeContainer.addChild(button);
+	}
+}
+function gameOver() {
+	gameState = 'gameover';
+	LK.showGameOver();
+}
+// Input handling
+var dragActive = false;
+game.down = function (x, y, obj) {
+	if (gameState === 'playing') {
+		dragActive = true;
+		player.x = x;
+		player.y = y;
+	}
+};
+game.move = function (x, y, obj) {
+	if (gameState === 'playing' && dragActive) {
+		player.x = Math.max(40, Math.min(2008, x));
+		player.y = Math.max(100, Math.min(2632, y));
+	}
+};
+game.up = function (x, y, obj) {
+	dragActive = false;
+};
+// Main game loop
+game.update = function () {
+	if (gameState !== 'playing') return;
+	// Spawn enemies
+	if (enemiesSpawned < enemiesToSpawn) {
+		spawnTimer++;
+		if (spawnTimer >= spawnRate) {
+			spawnEnemy();
+			spawnTimer = 0;
+		}
+	}
+	// Update player bullets
+	for (var i = playerBullets.length - 1; i >= 0; i--) {
+		var bullet = playerBullets[i];
+		if (bullet.y < -50) {
+			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)) {
+				if (enemy.takeDamage(bullet.damage)) {
+					enemies.splice(j, 1);
+				}
+				bullet.destroy();
+				playerBullets.splice(i, 1);
+				break;
+			}
+		}
+	}
+	// Update enemy bullets
+	for (var i = enemyBullets.length - 1; i >= 0; i--) {
+		var bullet = enemyBullets[i];
+		if (bullet.y > 2782) {
+			bullet.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (bullet.intersects(player)) {
+			player.takeDamage(bullet.damage);
+			bullet.destroy();
+			enemyBullets.splice(i, 1);
+		}
+	}
+	// Update missiles
+	for (var i = missiles.length - 1; i >= 0; i--) {
+		var missile = missiles[i];
+		if (missile.y > 2782 || missile.y < -50 || missile.x < -50 || missile.x > 2098) {
+			missile.destroy();
+			missiles.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (missile.intersects(player)) {
+			player.takeDamage(missile.damage);
+			missile.destroy();
+			missiles.splice(i, 1);
+		}
+	}
+	// Update enemies
+	for (var i = enemies.length - 1; i >= 0; i--) {
+		var enemy = enemies[i];
+		if (enemy.y > 2782) {
+			enemy.destroy();
+			enemies.splice(i, 1);
+		}
+	}
+	// Check wave completion
+	if (enemiesSpawned >= enemiesToSpawn && enemies.length === 0 && !waveComplete) {
+		completeWave();
+	}
+};
+// Start first wave
+updateWaveDisplay();
+updateHealthDisplay();
+LK.playMusic('bgmusic');
\ No newline at end of file