===================================================================
--- original.js
+++ change.js
@@ -1,6 +1,121 @@
-/****
+/**** 
+* Plugins
+****/ 
+var tween = LK.import("@upit/tween.v1");
+
+/**** 
+* Classes
+****/ 
+// HelloCircle: The main "Hello" display.
+var HelloCircle = Container.expand(function () {
+	var self = Container.call(this);
+	var circle = self.attachAsset('helloCircle', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.circle = circle;
+	// "Hello" text
+	var helloText = new Text2('Hello!', {
+		size: 200,
+		fill: 0xFFFFFF
+	});
+	helloText.anchor.set(0.5, 0.5);
+	helloText.x = 0;
+	helloText.y = 0;
+	self.addChild(helloText);
+	return self;
+});
+// TapEffect: A quick expanding/fading effect when the user taps.
+var TapEffect = Container.expand(function () {
+	var self = Container.call(this);
+	var effect = self.attachAsset('tapEffect', {
+		anchorX: 0.5,
+		anchorY: 0.5,
+		alpha: 0.7
+	});
+	self.effect = effect;
+	// Animate: expand and fade out, then destroy self
+	self.play = function () {
+		self.scaleX = 0.5;
+		self.scaleY = 0.5;
+		self.alpha = 0.7;
+		tween(self, {
+			scaleX: 2,
+			scaleY: 2,
+			alpha: 0
+		}, {
+			duration: 400,
+			easing: tween.easeOut,
+			onFinish: function onFinish() {
+				self.destroy();
+			}
+		});
+	};
+	return self;
+});
+
+/**** 
 * Initialize Game
-****/
+****/ 
 var game = new LK.Game({
-	backgroundColor: 0x000000
-});
\ No newline at end of file
+	backgroundColor: 0x222244
+});
+
+/**** 
+* Game Code
+****/ 
+// We'll use tween for the animation.
+// No custom assets needed for this simple game. We'll use a friendly colored ellipse for the "Hello" and a box for the tap effect.
+// Center coordinates
+var centerX = 2048 / 2;
+var centerY = 2732 / 2;
+// Add the HelloCircle to the center
+var helloCircle = new HelloCircle();
+helloCircle.x = centerX;
+helloCircle.y = centerY;
+game.addChild(helloCircle);
+// "Tap to Start" text
+var tapText = new Text2('Tap anywhere to start', {
+	size: 100,
+	fill: 0xFFFDE7
+});
+tapText.anchor.set(0.5, 0);
+LK.gui.bottom.addChild(tapText);
+// State: has the game started?
+var started = false;
+// Handle tap (down) anywhere on the game
+game.down = function (x, y, obj) {
+	if (!started) {
+		started = true;
+		// Animate the helloCircle: scale up and fade out
+		tween(helloCircle, {
+			scaleX: 1.5,
+			scaleY: 1.5,
+			alpha: 0
+		}, {
+			duration: 600,
+			easing: tween.easeInOut,
+			onFinish: function onFinish() {
+				helloCircle.destroy();
+			}
+		});
+		// Animate the tapText: fade out and move down
+		tween(tapText, {
+			y: tapText.y + 100,
+			alpha: 0
+		}, {
+			duration: 500,
+			easing: tween.easeIn,
+			onFinish: function onFinish() {
+				tapText.destroy();
+			}
+		});
+	}
+	// Show tap effect at tap location (in game coordinates)
+	var effect = new TapEffect();
+	effect.x = x;
+	effect.y = y;
+	game.addChild(effect);
+	effect.play();
+};
+// No need for update or other handlers for this simple demo.
\ No newline at end of file