===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,190 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+var facekit = LK.import("@upit/facekit.v1");
+
+/**** 
+* Classes
+****/ 
+// Enemy class
+var Enemy = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyAsset = self.attachAsset('enemy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 12 + Math.random() * 8; // Downward, randomize a bit
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+// Bullet class
+var HeroBullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletAsset = self.attachAsset('heroBullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -40; // Fast upward
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+// Hero Ship class
+var HeroShip = Container.expand(function () {
+	var self = Container.call(this);
+	var shipAsset = self.attachAsset('heroShip', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// For possible future effects
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
 	backgroundColor: 0x000000
-});
\ No newline at end of file
+});
+
+/**** 
+* Game Code
+****/ 
+// Sound for shooting
+// Enemy: red ellipse
+// Bullet: small yellow box
+// Hero ship: ellipse, blue
+// Score display
+var scoreTxt = new Text2('0', {
+	size: 120,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Create hero ship
+var heroShip = new HeroShip();
+game.addChild(heroShip);
+// Start at center bottom
+heroShip.x = 2048 / 2;
+heroShip.y = 2732 - 350;
+// Bullets and enemies arrays
+var heroBullets = [];
+var enemies = [];
+// Bullet cooldown
+var bulletCooldown = 0;
+var bulletCooldownFrames = 12; // ~0.2s at 60fps
+// Enemy spawn timer
+var enemySpawnFrames = 36; // ~0.6s at 60fps
+// For mouth open detection
+var lastMouthOpen = false;
+// For game over state
+var isGameOver = false;
+// Main update loop
+game.update = function () {
+	// Move hero ship to facekit mouth position (if available)
+	if (facekit.mouthCenter && typeof facekit.mouthCenter.x === 'number' && typeof facekit.mouthCenter.y === 'number') {
+		// Clamp to game area, keep ship fully visible
+		var shipW = heroShip.width || 140;
+		var shipH = heroShip.height || 140;
+		var targetX = Math.max(shipW / 2, Math.min(2048 - shipW / 2, facekit.mouthCenter.x));
+		var targetY = Math.max(shipH / 2 + 100, Math.min(2732 - shipH / 2, facekit.mouthCenter.y));
+		// Tween for smoothness
+		tween(heroShip, {
+			x: targetX,
+			y: targetY
+		}, {
+			duration: 80,
+			easing: tween.easeOut
+		});
+	}
+	// Handle shooting (mouth open)
+	var mouthOpen = !!facekit.mouthOpen;
+	if (mouthOpen && !lastMouthOpen && bulletCooldown <= 0) {
+		// Fire bullet
+		var bullet = new HeroBullet();
+		bullet.x = heroShip.x;
+		bullet.y = heroShip.y - (heroShip.height ? heroShip.height / 2 : 70) - 30;
+		heroBullets.push(bullet);
+		game.addChild(bullet);
+		bulletCooldown = bulletCooldownFrames;
+		LK.getSound('shoot').play();
+	}
+	lastMouthOpen = mouthOpen;
+	if (bulletCooldown > 0) bulletCooldown--;
+	// Update bullets
+	for (var i = heroBullets.length - 1; i >= 0; i--) {
+		var b = heroBullets[i];
+		b.update();
+		// Remove if off screen
+		if (b.y < -100) {
+			b.destroy();
+			heroBullets.splice(i, 1);
+			continue;
+		}
+	}
+	// Spawn enemies
+	if (LK.ticks % enemySpawnFrames === 0) {
+		var enemy = new Enemy();
+		// Random X, avoid edges
+		var ew = enemy.width || 120;
+		enemy.x = ew / 2 + 80 + Math.random() * (2048 - ew - 160);
+		enemy.y = -ew / 2 - 40;
+		enemies.push(enemy);
+		game.addChild(enemy);
+	}
+	// Update enemies
+	for (var j = enemies.length - 1; j >= 0; j--) {
+		var e = enemies[j];
+		e.update();
+		// Remove if off screen
+		if (e.y > 2732 + 100) {
+			e.destroy();
+			enemies.splice(j, 1);
+			continue;
+		}
+	}
+	// Bullet-enemy collisions
+	for (var k = enemies.length - 1; k >= 0; k--) {
+		var enemyObj = enemies[k];
+		for (var l = heroBullets.length - 1; l >= 0; l--) {
+			var bulletObj = heroBullets[l];
+			if (enemyObj.intersects(bulletObj)) {
+				// Destroy both
+				enemyObj.destroy();
+				bulletObj.destroy();
+				enemies.splice(k, 1);
+				heroBullets.splice(l, 1);
+				// Score up
+				LK.setScore(LK.getScore() + 1);
+				scoreTxt.setText(LK.getScore());
+				break;
+			}
+		}
+	}
+	// Enemy-hero collision (game over)
+	for (var m = 0; m < enemies.length; m++) {
+		var enemyObj2 = enemies[m];
+		if (enemyObj2.intersects(heroShip)) {
+			if (!isGameOver) {
+				isGameOver = true;
+				LK.effects.flashScreen(0xff0000, 1000);
+				LK.showGameOver();
+			}
+			break;
+		}
+	}
+};
+// No touch controls needed; all control is via facekit
+// Reset state on game over (handled by LK, but clear local state)
+game.onDestroy = function () {
+	heroBullets = [];
+	enemies = [];
+	isGameOver = false;
+	lastMouthOpen = false;
+	bulletCooldown = 0;
+	scoreTxt.setText('0');
+};
\ No newline at end of file