===================================================================
--- original.js
+++ change.js
@@ -1,96 +1,13 @@
 /**** 
 * Plugins
 ****/ 
+var tween = LK.import("@upit/tween.v1");
 var facekit = LK.import("@upit/facekit.v1");
 
 /**** 
-* Classes
-****/ 
-// Create main game container
-var GameContainer = Container.expand(function () {
-	var self = Container.call(this);
-	// Create staff lines
-	self.createStaffLines = function () {
-		// Vertical line
-		var verticalLine = new Container();
-		verticalLine.sprite = LK.getAsset('line', {});
-		verticalLine.sprite.x = NOTE_LINE_X;
-		verticalLine.sprite.scaleX = 0.1;
-		verticalLine.sprite.scaleY = LK.height;
-		self.addChild(verticalLine);
-		// Horizontal lines
-		var lineSpacing = LK.height * 0.6 / 4;
-		var startY = (LK.height - lineSpacing * 4) / 2;
-		for (var i = 0; i < 5; i++) {
-			var line = new Container();
-			line.sprite = LK.getAsset('line', {});
-			line.sprite.scaleX = LK.width;
-			line.sprite.scaleY = 0.1;
-			line.sprite.y = startY + i * lineSpacing;
-			self.addChild(line);
-		}
-	};
-	// Create player orb and lives
-	self.createPlayerElements = function () {
-		self.playerOrb = new Container();
-		self.playerOrb.sprite = LK.getAsset('orb', {});
-		self.playerOrb.sprite.x = NOTE_LINE_X;
-		self.playerOrb.sprite.y = LK.height / 2;
-		self.addChild(self.playerOrb);
-		// Create life indicators
-		for (var i = 0; i < LIVES; i++) {
-			var life = new Container();
-			life.sprite = LK.getAsset('orb', {});
-			life.sprite.x = 30 + i * 40;
-			life.sprite.y = LK.height - 30;
-			lifeOrbs.push(life);
-			self.addChild(life);
-		}
-		// Score display
-		self.scoreText = new Text2("0", {
-			size: 50,
-			fill: 0xFFFFFF
-		});
-		self.scoreText.x = LK.width / 2;
-		self.scoreText.y = 30;
-		self.addChild(self.scoreText);
-	};
-	self.init = function () {
-		self.createStaffLines();
-		self.createPlayerElements();
-	};
-	self.update = function () {
-		// Check volume and update player orb
-		if (facekit.volume > VOLUME_THRESHOLD) {
-			var targetY = self.convertPitchToY(facekit.pitch);
-			// Smooth movement
-			self.playerOrb.sprite.y += (targetY - self.playerOrb.sprite.y) * 0.15;
-		}
-		// Update active notes
-		for (var i = notesActive.length - 1; i >= 0; i--) {
-			var note = notesActive[i];
-			note.sprite.x -= NOTE_SPEED;
-			// Check for collision at vertical line
-			if (Math.abs(note.sprite.x - NOTE_LINE_X) < 5) {
-				self.checkNoteHit(note);
-			}
-			// Remove if passed screen
-			if (note.sprite.x < 0) {
-				self.showMiss(NOTE_LINE_X, note.sprite.y);
-				self.removeChild(note);
-				notesActive.splice(i, 1);
-				self.loseLife();
-			}
-		}
-	};
-	return self;
-});
-
-/**** 
 * Initialize Game
 ****/ 
-//<Assets used in the game will automatically appear here>
 var game = new LK.Game({
 	backgroundColor: 0x000000 //Init game with black background 
 });
 
@@ -98,18 +15,5 @@
 * Game Code
 ****/ 
 //<Assets used in the game will automatically appear here>
 // Game update function
-// Constants
-var VOLUME_THRESHOLD = 50;
-var NOTE_LINE_X = LK.width * 0.2;
-var LIVES = 3;
-var NOTE_SPEED = 3;
-// Game state
-var score = 0;
-var lives = LIVES;
-var lifeOrbs = [];
-var notesActive = [];
-var gameContainer = new GameContainer();
-game.addChild(gameContainer);
-gameContainer.init();
 game.update = function () {};
\ No newline at end of file