===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,239 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+var storage = LK.import("@upit/storage.v1");
+
+/**** 
+* Classes
+****/ 
+var Enemy = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyGraphics = self.attachAsset('enemyShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 2;
+	self.shootTimer = 0;
+	self.shootDelay = 120 + Math.random() * 120; // Random shoot delay
+	self.update = function () {
+		self.y += self.speed;
+		// Enemy shooting logic
+		self.shootTimer++;
+		if (self.shootTimer >= self.shootDelay && self.y > 100 && self.y < 2500) {
+			var bullet = new EnemyBullet();
+			bullet.x = self.x;
+			bullet.y = self.y + 30;
+			enemyBullets.push(bullet);
+			game.addChild(bullet);
+			self.shootTimer = 0;
+			self.shootDelay = 60 + Math.random() * 180;
+		}
+	};
+	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('playerShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.shootTimer = 0;
+	self.shootDelay = 15; // Auto-fire rate
+	self.update = function () {
+		// Auto-fire bullets
+		self.shootTimer++;
+		if (self.shootTimer >= self.shootDelay) {
+			var bullet = new PlayerBullet();
+			bullet.x = self.x;
+			bullet.y = self.y - 40;
+			playerBullets.push(bullet);
+			game.addChild(bullet);
+			LK.getSound('shoot').play();
+			self.shootTimer = 0;
+		}
+	};
+	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;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x000033
+});
+
+/**** 
+* Game Code
+****/ 
+// Game variables
+var player;
+var enemies = [];
+var playerBullets = [];
+var enemyBullets = [];
+var enemySpawnTimer = 0;
+var enemySpawnDelay = 60;
+var waveNumber = 1;
+var difficultyTimer = 0;
+var dragNode = null;
+// Initialize score display
+var scoreTxt = new Text2('0', {
+	size: 60,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Initialize wave display
+var waveTxt = new Text2('Wave 1', {
+	size: 40,
+	fill: 0xFFFF00
+});
+waveTxt.anchor.set(1, 0);
+waveTxt.x = -20;
+waveTxt.y = 20;
+LK.gui.topRight.addChild(waveTxt);
+// Create player
+player = game.addChild(new Player());
+player.x = 2048 / 2;
+player.y = 2732 - 150;
+// Game input handling
+function handleMove(x, y, obj) {
+	if (dragNode) {
+		dragNode.x = Math.max(40, Math.min(2048 - 40, x));
+	}
+}
+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 update loop
+game.update = function () {
+	// Update difficulty over time
+	difficultyTimer++;
+	if (difficultyTimer >= 1800) {
+		// Every 30 seconds at 60fps
+		waveNumber++;
+		waveTxt.setText('Wave ' + waveNumber);
+		enemySpawnDelay = Math.max(20, enemySpawnDelay - 5);
+		difficultyTimer = 0;
+	}
+	// Spawn enemies
+	enemySpawnTimer++;
+	if (enemySpawnTimer >= enemySpawnDelay) {
+		var enemy = new Enemy();
+		enemy.x = 100 + Math.random() * (2048 - 200);
+		enemy.y = -50;
+		enemy.speed = 1 + waveNumber * 0.3 + Math.random() * 2;
+		enemies.push(enemy);
+		game.addChild(enemy);
+		enemySpawnTimer = 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
+		var hitEnemy = false;
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			var enemy = enemies[j];
+			if (bullet.intersects(enemy)) {
+				// Destroy both bullet and enemy
+				LK.setScore(LK.getScore() + 10);
+				scoreTxt.setText(LK.getScore().toString());
+				LK.getSound('enemyHit').play();
+				bullet.destroy();
+				playerBullets.splice(i, 1);
+				enemy.destroy();
+				enemies.splice(j, 1);
+				hitEnemy = true;
+				break;
+			}
+		}
+		if (hitEnemy) continue;
+		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 <= 2762 && bullet.y > 2762) {
+			bullet.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (bullet.intersects(player)) {
+			LK.getSound('playerHit').play();
+			LK.effects.flashScreen(0xff0000, 1000);
+			// Save high score
+			var currentScore = LK.getScore();
+			var highScore = storage.highScore || 0;
+			if (currentScore > highScore) {
+				storage.highScore = currentScore;
+			}
+			LK.showGameOver();
+			return;
+		}
+		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 <= 2762 && enemy.y > 2762) {
+			enemy.destroy();
+			enemies.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (enemy.intersects(player)) {
+			LK.getSound('playerHit').play();
+			LK.effects.flashScreen(0xff0000, 1000);
+			// Save high score
+			var currentScore = LK.getScore();
+			var highScore = storage.highScore || 0;
+			if (currentScore > highScore) {
+				storage.highScore = currentScore;
+			}
+			LK.showGameOver();
+			return;
+		}
+		enemy.lastY = enemy.y;
+	}
+};
\ No newline at end of file