===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,201 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+// Bullet class
+var Bullet = Container.expand(function () {
+	var self = Container.call(this);
+	var bulletGfx = self.attachAsset('bullet', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -48; // Fast upward
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+// Crosshair class (visual only)
+var Crosshair = Container.expand(function () {
+	var self = Container.call(this);
+	var crossGfx = self.attachAsset('crosshair', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	crossGfx.alpha = 0.4;
+	return self;
+});
+// Enemy class
+var Enemy = Container.expand(function () {
+	var self = Container.call(this);
+	var enemyGfx = self.attachAsset('enemy', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 6 + Math.random() * 6; // Varying speed
+	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: 0x181818
+});
+
+/**** 
+* Game Code
+****/ 
+// Music (optional, will not play by default)
+// Sound for enemy escape
+// Sound for enemy hit
+// Sound for shooting
+// Crosshair: Green ellipse, thin
+// Bullet: Yellow box, small
+// Enemy: Red ellipse, medium size
+// Game variables
+var bullets = [];
+var enemies = [];
+var crosshair = null;
+var score = 0;
+var missed = 0;
+var maxMissed = 5;
+var spawnInterval = 60; // frames between spawns, will decrease
+var lastSpawnTick = 0;
+var dragAiming = false;
+// Score display
+var scoreTxt = new Text2('0', {
+	size: 120,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Missed display (bottom center)
+var missedTxt = new Text2('', {
+	size: 90,
+	fill: 0xFF4444
+});
+missedTxt.anchor.set(0.5, 1);
+LK.gui.bottom.addChild(missedTxt);
+// Crosshair
+crosshair = new Crosshair();
+game.addChild(crosshair);
+crosshair.x = 2048 / 2;
+crosshair.y = 2732 * 0.8;
+// Helper: update UI
+function updateUI() {
+	scoreTxt.setText(score);
+	missedTxt.setText(missed > 0 ? "Missed: " + missed + "/" + maxMissed : "");
+}
+// Helper: spawn enemy at random x
+function spawnEnemy() {
+	var enemy = new Enemy();
+	var margin = 120;
+	enemy.x = margin + Math.random() * (2048 - 2 * margin);
+	enemy.y = -80;
+	enemies.push(enemy);
+	game.addChild(enemy);
+}
+// Helper: fire bullet from crosshair
+function fireBullet(x, y) {
+	var bullet = new Bullet();
+	bullet.x = x;
+	bullet.y = y;
+	bullets.push(bullet);
+	game.addChild(bullet);
+	LK.getSound('shoot').play();
+}
+// Touch controls
+game.down = function (x, y, obj) {
+	// Move crosshair to touch, fire
+	crosshair.x = x;
+	crosshair.y = y;
+	fireBullet(x, y);
+	dragAiming = true;
+};
+game.move = function (x, y, obj) {
+	if (dragAiming) {
+		crosshair.x = x;
+		crosshair.y = y;
+	}
+};
+game.up = function (x, y, obj) {
+	dragAiming = false;
+};
+// Main update loop
+game.update = function () {
+	// Spawn enemies
+	if (LK.ticks - lastSpawnTick >= spawnInterval) {
+		spawnEnemy();
+		lastSpawnTick = LK.ticks;
+		// Increase difficulty
+		if (spawnInterval > 24) {
+			spawnInterval -= 1;
+		}
+	}
+	// Update bullets
+	for (var i = bullets.length - 1; i >= 0; i--) {
+		var b = bullets[i];
+		b.update();
+		// Remove if off screen
+		if (b.y < -100) {
+			b.destroy();
+			bullets.splice(i, 1);
+			continue;
+		}
+	}
+	// Update enemies
+	for (var j = enemies.length - 1; j >= 0; j--) {
+		var e = enemies[j];
+		e.update();
+		// Check if enemy reached bottom
+		if (e.y > 2732 + 100) {
+			e.destroy();
+			enemies.splice(j, 1);
+			missed += 1;
+			updateUI();
+			LK.getSound('fail').play();
+			// Game over if too many missed
+			if (missed >= maxMissed) {
+				LK.effects.flashScreen(0xff0000, 800);
+				LK.showGameOver();
+				return;
+			}
+			continue;
+		}
+		// Check collision with bullets
+		var hit = false;
+		for (var k = bullets.length - 1; k >= 0; k--) {
+			var b2 = bullets[k];
+			if (e.intersects(b2)) {
+				// Hit!
+				hit = true;
+				score += 1;
+				updateUI();
+				LK.getSound('hit').play();
+				// Remove both
+				e.destroy();
+				b2.destroy();
+				enemies.splice(j, 1);
+				bullets.splice(k, 1);
+				// Win condition
+				if (score >= 30) {
+					LK.effects.flashScreen(0x44ff44, 800);
+					LK.showYouWin();
+					return;
+				}
+				break;
+			}
+		}
+		if (hit) continue;
+	}
+};
+// Initial UI
+updateUI();
\ No newline at end of file