===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,251 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+var facekit = LK.import("@upit/facekit.v1");
+
+/**** 
+* Classes
+****/ 
+// Obstacle class: moves downward, destroys itself off-screen
+var Obstacle = Container.expand(function () {
+	var self = Container.call(this);
+	var obsGfx = self.attachAsset('obstacle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 18 + Math.random() * 10; // pixels per frame, increases with time
+	self.update = function () {
+		self.y += self.speed;
+	};
+	return self;
+});
+// Player class: follows face position
+var Player = Container.expand(function () {
+	var self = Container.call(this);
+	var playerGfx = self.attachAsset('player', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	// For possible future effects
+	self.flash = function () {
+		tween(self, {
+			alpha: 0.3
+		}, {
+			duration: 80,
+			onFinish: function onFinish() {
+				tween(self, {
+					alpha: 1
+				}, {
+					duration: 120
+				});
+			}
+		});
+	};
+	return self;
+});
+// Powerup class: moves downward, destroys itself off-screen
+var Powerup = Container.expand(function () {
+	var self = Container.call(this);
+	var powGfx = self.attachAsset('powerup', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = 14 + Math.random() * 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: 0x181c2c
+});
+
+/**** 
+* Game Code
+****/ 
+// Powerup: Green ellipse
+// Obstacle: Red box
+// Character: Player avatar (ellipse, bright color)
+// Game area margins (to avoid top-left menu)
+var marginTop = 100;
+var marginLeft = 100;
+var marginRight = 100;
+var marginBottom = 100;
+// Player setup
+var player = new Player();
+game.addChild(player);
+// Start in center
+player.x = 2048 / 2;
+player.y = 2732 - 400;
+// Score display
+var scoreTxt = new Text2('0', {
+	size: 120,
+	fill: 0xFFFFFF
+});
+scoreTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(scoreTxt);
+// Powerup timer display (hidden by default)
+var powerupTxt = new Text2('', {
+	size: 80,
+	fill: 0xFFE066
+});
+powerupTxt.anchor.set(0.5, 0);
+LK.gui.top.addChild(powerupTxt);
+powerupTxt.visible = false;
+// Game state
+var obstacles = [];
+var powerups = [];
+var powerupActive = false;
+var powerupTimer = 0;
+var powerupDuration = 180; // frames (3 seconds)
+var score = 0;
+var ticks = 0;
+var gameOver = false;
+// Helper: clamp value
+function clamp(val, min, max) {
+	return Math.max(min, Math.min(max, val));
+}
+// Main update loop
+game.update = function () {
+	if (gameOver) return;
+	ticks++;
+	// --- Face tracking: update player position ---
+	// Use mouth center if available, else fallback to noseTip
+	var faceX = facekit.mouthCenter && facekit.mouthCenter.x ? facekit.mouthCenter.x : facekit.noseTip && facekit.noseTip.x ? facekit.noseTip.x : 2048 / 2;
+	var faceY = facekit.mouthCenter && facekit.mouthCenter.y ? facekit.mouthCenter.y : facekit.noseTip && facekit.noseTip.y ? facekit.noseTip.y : 2732 - 400;
+	// Clamp to game area (avoid top-left menu and screen edges)
+	var px = clamp(faceX, marginLeft + player.width / 2, 2048 - marginRight - player.width / 2);
+	var py = clamp(faceY, marginTop + player.height / 2, 2732 - marginBottom - player.height / 2);
+	// Smooth movement (lerp)
+	player.x += (px - player.x) * 0.35;
+	player.y += (py - player.y) * 0.35;
+	// --- Spawn obstacles ---
+	// Increase spawn rate over time
+	var spawnInterval = Math.max(32, 80 - Math.floor(ticks / 600));
+	if (ticks % spawnInterval === 0) {
+		var obs = new Obstacle();
+		// Random X, avoid edges
+		obs.x = clamp(180 + Math.random() * (2048 - 360), marginLeft + 90, 2048 - marginRight - 90);
+		obs.y = -80;
+		// Speed up as score increases
+		obs.speed += Math.floor(score / 10) * 2;
+		obstacles.push(obs);
+		game.addChild(obs);
+	}
+	// --- Spawn powerups ---
+	if (!powerupActive && ticks > 120 && ticks % 420 === 0) {
+		var pow = new Powerup();
+		pow.x = clamp(180 + Math.random() * (2048 - 360), marginLeft + 90, 2048 - marginRight - 90);
+		pow.y = -60;
+		powerups.push(pow);
+		game.addChild(pow);
+	}
+	// --- Update obstacles ---
+	for (var i = obstacles.length - 1; i >= 0; i--) {
+		var obs = obstacles[i];
+		obs.update();
+		// Off-screen
+		if (obs.y - obs.height / 2 > 2732 + 40) {
+			obs.destroy();
+			obstacles.splice(i, 1);
+			continue;
+		}
+		// Collision with player
+		if (!powerupActive && player.intersects(obs)) {
+			player.flash();
+			LK.effects.flashScreen(0xff0000, 600);
+			gameOver = true;
+			LK.setTimeout(function () {
+				LK.showGameOver();
+			}, 600);
+			return;
+		}
+	}
+	// --- Update powerups ---
+	for (var j = powerups.length - 1; j >= 0; j--) {
+		var pow = powerups[j];
+		pow.update();
+		// Off-screen
+		if (pow.y - pow.height / 2 > 2732 + 40) {
+			pow.destroy();
+			powerups.splice(j, 1);
+			continue;
+		}
+		// Collect
+		if (player.intersects(pow)) {
+			pow.destroy();
+			powerups.splice(j, 1);
+			powerupActive = true;
+			powerupTimer = powerupDuration;
+			powerupTxt.visible = true;
+			// Visual feedback
+			tween(player, {
+				scaleX: 1.3,
+				scaleY: 1.3
+			}, {
+				duration: 200,
+				onFinish: function onFinish() {
+					tween(player, {
+						scaleX: 1,
+						scaleY: 1
+					}, {
+						duration: 200
+					});
+				}
+			});
+		}
+	}
+	// --- Powerup effect ---
+	if (powerupActive) {
+		powerupTimer--;
+		powerupTxt.setText("Invincible: " + Math.ceil(powerupTimer / 60) + "s");
+		if (powerupTimer <= 0) {
+			powerupActive = false;
+			powerupTxt.visible = false;
+		}
+	}
+	// --- Score ---
+	if (ticks % 6 === 0 && !gameOver) {
+		score++;
+		LK.setScore(score);
+		scoreTxt.setText(score);
+	}
+};
+// Reset state on game restart
+game.on('reset', function () {
+	// Remove all obstacles and powerups
+	for (var i = 0; i < obstacles.length; i++) obstacles[i].destroy();
+	for (var j = 0; j < powerups.length; j++) powerups[j].destroy();
+	obstacles = [];
+	powerups = [];
+	score = 0;
+	LK.setScore(0);
+	scoreTxt.setText('0');
+	powerupActive = false;
+	powerupTimer = 0;
+	powerupTxt.visible = false;
+	player.x = 2048 / 2;
+	player.y = 2732 - 400;
+	gameOver = false;
+	ticks = 0;
+});
+// No touch controls: face only, but allow drag fallback for debug
+var dragNode = null;
+game.down = function (x, y, obj) {
+	// For debug: allow dragging player if facekit not available
+	if (!facekit.mouthCenter) dragNode = player;
+};
+game.move = function (x, y, obj) {
+	if (dragNode) {
+		player.x = clamp(x, marginLeft + player.width / 2, 2048 - marginRight - player.width / 2);
+		player.y = clamp(y, marginTop + player.height / 2, 2732 - marginBottom - player.height / 2);
+	}
+};
+game.up = function (x, y, obj) {
+	dragNode = null;
+};
\ No newline at end of file