===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,431 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+// Enemy bullet class
+var EnemyBullet = Container.expand(function () {
+	var self = Container.call(this);
+	// Attach bullet asset (red, 24x48)
+	var bullet = self.attachAsset('enemyBullet', {
+		width: 24,
+		height: 48,
+		color: 0xff4444,
+		shape: 'box',
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 14;
+	self.radius = 12;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+// Enemy ship class
+var EnemyShip = Container.expand(function () {
+	var self = Container.call(this);
+	// Attach enemy asset (ellipse, magenta, 100x80)
+	var enemy = self.attachAsset('enemyShip', {
+		width: 100,
+		height: 80,
+		color: 0xff33cc,
+		shape: 'ellipse',
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.radius = 50;
+	self.speed = 4 + Math.random() * 2; // Vary speed
+	self.dirX = (Math.random() - 0.5) * 2; // Slight horizontal drift
+	// For movement patterns
+	self.waveOffset = Math.random() * Math.PI * 2;
+	// For collision
+	self.isAlive = true;
+	// Update per frame
+	self.update = function () {
+		// Move down, with a sine wave pattern
+		self.y += self.speed;
+		self.x += Math.sin(LK.ticks / 30 + self.waveOffset) * 2 + self.dirX;
+	};
+	// Flash on hit
+	self.flash = function () {
+		tween(enemy, {
+			tint: 0xffffff
+		}, {
+			duration: 80,
+			onFinish: function onFinish() {
+				tween(enemy, {
+					tint: 0xff33cc
+				}, {
+					duration: 120
+				});
+			}
+		});
+	};
+	return self;
+});
+// Player bullet class
+var PlayerBullet = Container.expand(function () {
+	var self = Container.call(this);
+	// Attach bullet asset (yellow, 30x60)
+	var bullet = self.attachAsset('playerBullet', {
+		width: 30,
+		height: 60,
+		color: 0xffe066,
+		shape: 'box',
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -22;
+	self.radius = 15;
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+// Player spaceship class
+var PlayerShip = Container.expand(function () {
+	var self = Container.call(this);
+	// Attach ship asset (box, blue, 120x120)
+	var ship = self.attachAsset('playerShip', {
+		width: 120,
+		height: 120,
+		color: 0x3399ff,
+		shape: 'box',
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// Ship properties
+	self.radius = 60; // for collision
+	self.isAlive = true;
+	// Ship flash effect on hit
+	self.flash = function () {
+		tween(ship, {
+			tint: 0xff3333
+		}, {
+			duration: 100,
+			onFinish: function onFinish() {
+				tween(ship, {
+					tint: 0x3399ff
+				}, {
+					duration: 200
+				});
+			}
+		});
+	};
+	return self;
+});
+// Powerup class
+var PowerUp = Container.expand(function () {
+	var self = Container.call(this);
+	// Attach powerup asset (green ellipse, 60x60)
+	var pu = self.attachAsset('powerUp', {
+		width: 60,
+		height: 60,
+		color: 0x44ff88,
+		shape: 'ellipse',
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.radius = 30;
+	self.speed = 6;
+	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: 0x000010
+});
+
+/**** 
+* Game Code
+****/ 
+// Game constants
+var GAME_WIDTH = 2048;
+var GAME_HEIGHT = 2732;
+var PLAYER_START_X = GAME_WIDTH / 2;
+var PLAYER_START_Y = GAME_HEIGHT - 350;
+// Game state
+var player;
+var enemies = [];
+var playerBullets = [];
+var enemyBullets = [];
+var powerUps = [];
+var dragNode = null;
+var lastScore = 0;
+var scoreTxt;
+var powerUpActive = false;
+var powerUpTimer = 0;
+var enemySpawnTimer = 0;
+var enemyFireTimer = 0;
+var powerUpSpawnTimer = 0;
+var gameOver = false;
+// Score display
+scoreTxt = new Text2('0', {
+	size: 120,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Initialize player
+player = new PlayerShip();
+player.x = PLAYER_START_X;
+player.y = PLAYER_START_Y;
+game.addChild(player);
+// Touch/move controls
+function handleMove(x, y, obj) {
+	if (dragNode && player.isAlive) {
+		// Clamp to game area, avoid top 100px (menu)
+		var px = Math.max(60, Math.min(GAME_WIDTH - 60, x));
+		var py = Math.max(200, Math.min(GAME_HEIGHT - 60, y));
+		dragNode.x = px;
+		dragNode.y = py;
+	}
+}
+game.move = handleMove;
+game.down = function (x, y, obj) {
+	if (player.isAlive) {
+		dragNode = player;
+		handleMove(x, y, obj);
+	}
+};
+game.up = function (x, y, obj) {
+	dragNode = null;
+};
+// Helper: collision check (circle vs circle)
+function circlesIntersect(a, b) {
+	var dx = a.x - b.x;
+	var dy = a.y - b.y;
+	var dist = Math.sqrt(dx * dx + dy * dy);
+	return dist < a.radius + b.radius;
+}
+// Helper: spawn enemy
+function spawnEnemy() {
+	var enemy = new EnemyShip();
+	// Spawn in random horizontal position, avoid edges
+	enemy.x = 120 + Math.random() * (GAME_WIDTH - 240);
+	enemy.y = -100;
+	enemies.push(enemy);
+	game.addChild(enemy);
+}
+// Helper: spawn enemy bullet
+function spawnEnemyBullet(enemy) {
+	var bullet = new EnemyBullet();
+	bullet.x = enemy.x;
+	bullet.y = enemy.y + 60;
+	enemyBullets.push(bullet);
+	game.addChild(bullet);
+}
+// Helper: spawn player bullet
+function spawnPlayerBullet() {
+	var bullet = new PlayerBullet();
+	bullet.x = player.x;
+	bullet.y = player.y - 80;
+	playerBullets.push(bullet);
+	game.addChild(bullet);
+}
+// Helper: spawn powerup
+function spawnPowerUp() {
+	var pu = new PowerUp();
+	pu.x = 120 + Math.random() * (GAME_WIDTH - 240);
+	pu.y = -60;
+	powerUps.push(pu);
+	game.addChild(pu);
+}
+// Powerup effect: double shot
+function activatePowerUp() {
+	powerUpActive = true;
+	powerUpTimer = LK.ticks + 360; // 6 seconds at 60fps
+	// Flash player ship green
+	tween(player, {
+		tint: 0x44ff88
+	}, {
+		duration: 200,
+		onFinish: function onFinish() {
+			tween(player, {
+				tint: 0x3399ff
+			}, {
+				duration: 200
+			});
+		}
+	});
+}
+// Main game update
+game.update = function () {
+	if (!player.isAlive) return;
+	// --- Player auto-fire ---
+	if (LK.ticks % (powerUpActive ? 7 : 14) === 0) {
+		if (powerUpActive) {
+			// Double shot: two bullets
+			var b1 = new PlayerBullet();
+			b1.x = player.x - 36;
+			b1.y = player.y - 80;
+			playerBullets.push(b1);
+			game.addChild(b1);
+			var b2 = new PlayerBullet();
+			b2.x = player.x + 36;
+			b2.y = player.y - 80;
+			playerBullets.push(b2);
+			game.addChild(b2);
+		} else {
+			spawnPlayerBullet();
+		}
+	}
+	// --- Enemy spawn ---
+	if (enemySpawnTimer <= LK.ticks) {
+		spawnEnemy();
+		// Escalate spawn rate
+		var minDelay = 24,
+			maxDelay = 60;
+		var delay = Math.max(minDelay, maxDelay - Math.floor(LK.getScore() / 10) * 4);
+		enemySpawnTimer = LK.ticks + delay;
+	}
+	// --- Enemy fire ---
+	if (enemyFireTimer <= LK.ticks && enemies.length > 0) {
+		// Pick random enemy to fire
+		var idx = Math.floor(Math.random() * enemies.length);
+		if (enemies[idx]) {
+			spawnEnemyBullet(enemies[idx]);
+		}
+		// Escalate fire rate
+		var minFire = 18,
+			maxFire = 50;
+		var fireDelay = Math.max(minFire, maxFire - Math.floor(LK.getScore() / 10) * 3);
+		enemyFireTimer = LK.ticks + fireDelay;
+	}
+	// --- Powerup spawn ---
+	if (powerUpSpawnTimer <= LK.ticks) {
+		if (Math.random() < 0.18) {
+			// ~18% chance
+			spawnPowerUp();
+		}
+		powerUpSpawnTimer = LK.ticks + 300 + Math.floor(Math.random() * 200);
+	}
+	// --- Powerup timer ---
+	if (powerUpActive && LK.ticks > powerUpTimer) {
+		powerUpActive = false;
+	}
+	// --- Update player bullets ---
+	for (var i = playerBullets.length - 1; i >= 0; i--) {
+		var b = playerBullets[i];
+		b.update();
+		// Remove if off screen
+		if (b.y < -80) {
+			b.destroy();
+			playerBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with enemies
+		for (var j = enemies.length - 1; j >= 0; j--) {
+			var e = enemies[j];
+			if (e.isAlive && circlesIntersect(b, e)) {
+				e.isAlive = false;
+				e.flash();
+				b.destroy();
+				playerBullets.splice(i, 1);
+				// Remove enemy after flash
+				tween(e, {}, {
+					duration: 120,
+					onFinish: function onFinish() {
+						e.destroy();
+					}
+				});
+				enemies.splice(j, 1);
+				// Score
+				LK.setScore(LK.getScore() + 1);
+				scoreTxt.setText(LK.getScore());
+				break;
+			}
+		}
+	}
+	// --- Update enemy bullets ---
+	for (var i = enemyBullets.length - 1; i >= 0; i--) {
+		var eb = enemyBullets[i];
+		eb.update();
+		if (eb.y > GAME_HEIGHT + 80) {
+			eb.destroy();
+			enemyBullets.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (player.isAlive && circlesIntersect(eb, player)) {
+			eb.destroy();
+			enemyBullets.splice(i, 1);
+			player.flash();
+			// Game over
+			player.isAlive = false;
+			tween(player, {
+				alpha: 0.2
+			}, {
+				duration: 400
+			});
+			LK.effects.flashScreen(0xff0000, 800);
+			LK.setTimeout(function () {
+				LK.showGameOver();
+			}, 900);
+			break;
+		}
+	}
+	// --- Update enemies ---
+	for (var i = enemies.length - 1; i >= 0; i--) {
+		var e = enemies[i];
+		e.update();
+		if (e.y > GAME_HEIGHT + 100) {
+			e.destroy();
+			enemies.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (player.isAlive && e.isAlive && circlesIntersect(e, player)) {
+			e.isAlive = false;
+			e.flash();
+			player.flash();
+			tween(e, {}, {
+				duration: 120,
+				onFinish: function onFinish() {
+					e.destroy();
+				}
+			});
+			enemies.splice(i, 1);
+			// Game over
+			player.isAlive = false;
+			tween(player, {
+				alpha: 0.2
+			}, {
+				duration: 400
+			});
+			LK.effects.flashScreen(0xff0000, 800);
+			LK.setTimeout(function () {
+				LK.showGameOver();
+			}, 900);
+			break;
+		}
+	}
+	// --- Update powerups ---
+	for (var i = powerUps.length - 1; i >= 0; i--) {
+		var pu = powerUps[i];
+		pu.update();
+		if (pu.y > GAME_HEIGHT + 80) {
+			pu.destroy();
+			powerUps.splice(i, 1);
+			continue;
+		}
+		// Check collision with player
+		if (player.isAlive && circlesIntersect(pu, player)) {
+			pu.destroy();
+			powerUps.splice(i, 1);
+			activatePowerUp();
+		}
+	}
+};
+// Set initial score
+LK.setScore(0);
+scoreTxt.setText('0');
\ No newline at end of file