/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Ball = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.attachAsset('ball', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 12; // Much faster initial speed
	self.lastY = undefined;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Ball2 = Container.expand(function () {
	var self = Container.call(this);
	var ball2Graphics = self.attachAsset('Ball2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 14; // Slightly different speed than Ball
	self.lastY = undefined;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Cube = Container.expand(function () {
	var self = Container.call(this);
	var cubeGraphics = self.attachAsset('cube', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
var Star = Container.expand(function () {
	var self = Container.call(this);
	var starGraphics = self.attachAsset('star', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.lifeTime = 0;
	self.maxLifeTime = 30; // 0.5 seconds at 60fps
	self.update = function () {
		self.lifeTime++;
		// Fade out effect
		self.alpha = 1 - self.lifeTime / self.maxLifeTime;
		// Scale up effect
		var scale = 1 + self.lifeTime / self.maxLifeTime * 0.5;
		self.scaleX = scale;
		self.scaleY = scale;
		// Remove when lifetime exceeded
		if (self.lifeTime >= self.maxLifeTime) {
			self.destroy();
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a2e
});

/**** 
* Game Code
****/ 
var cube = game.addChild(new Cube());
cube.x = 2048 / 2;
cube.y = 2732 - 200;
var balls = [];
var balls2 = [];
var stars = [];
var ballTypeCounter = 0;
var ballSpawnTimer = 0;
var ballSpawnInterval = 20; // Spawn ball every 20 frames (faster for music sync)
var difficultyTimer = 0;
var gameStarted = false;
// Score display
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Music will start when first ball is caught
gameStarted = false;
// Touch controls for cube movement
var isDragging = false;
game.down = function (x, y, obj) {
	isDragging = true;
	cube.x = x;
};
game.move = function (x, y, obj) {
	if (isDragging) {
		cube.x = Math.max(75, Math.min(2048 - 75, x)); // Keep cube within screen bounds
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
};
game.update = function () {
	// Spawn balls
	ballSpawnTimer++;
	if (ballSpawnTimer >= ballSpawnInterval) {
		ballTypeCounter++;
		if (ballTypeCounter % 2 === 0) {
			// Spawn Ball type
			var newBall = new Ball();
			newBall.x = Math.random() * (2048 - 160) + 80; // Random x position within screen bounds
			newBall.y = -40;
			newBall.lastY = newBall.y;
			// Add subtle scale animation for musical sync feeling
			newBall.scaleX = 0.3;
			newBall.scaleY = 0.3;
			tween(newBall, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 200,
				easing: tween.easeOut
			});
			balls.push(newBall);
			game.addChild(newBall);
		} else {
			// Spawn Ball2 type
			var newBall2 = new Ball2();
			newBall2.x = Math.random() * (2048 - 160) + 80; // Random x position within screen bounds
			newBall2.y = -40;
			newBall2.lastY = newBall2.y;
			// Add subtle scale animation for musical sync feeling
			newBall2.scaleX = 0.3;
			newBall2.scaleY = 0.3;
			tween(newBall2, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 200,
				easing: tween.easeOut
			});
			balls2.push(newBall2);
			game.addChild(newBall2);
		}
		ballSpawnTimer = 0;
	}
	// Update difficulty - increase ball speed and spawn rate over time
	difficultyTimer++;
	if (difficultyTimer % 600 === 0) {
		// Every 10 seconds
		ballSpawnInterval = Math.max(10, ballSpawnInterval - 2); // Spawn much faster, minimum 10 frames
		for (var i = 0; i < balls.length; i++) {
			balls[i].speed = Math.min(18, balls[i].speed + 0.5); // Increase speed more aggressively, higher maximum
		}
		for (var j = 0; j < balls2.length; j++) {
			balls2[j].speed = Math.min(18, balls2[j].speed + 0.5); // Increase speed for Ball2 as well
		}
	}
	// Check ball collisions and cleanup
	for (var i = balls.length - 1; i >= 0; i--) {
		var ball = balls[i];
		// Check if ball was caught by cube
		if (ball.intersects(cube)) {
			// Start music on first ball catch
			if (!gameStarted) {
				LK.playMusic('backgroundMusic');
				gameStarted = true;
			}
			// Ball caught - increase score
			LK.setScore(LK.getScore() + 1);
			scoreTxt.setText(LK.getScore());
			// Play catch sound
			LK.getSound('catch').play();
			// Create star transformation effect at ball position
			var newStar = new Star();
			newStar.x = ball.x;
			newStar.y = ball.y;
			stars.push(newStar);
			game.addChild(newStar);
			// Add tween effect to star creation
			tween(newStar, {
				scaleX: 1.5,
				scaleY: 1.5
			}, {
				duration: 300,
				easing: tween.bounceOut
			});
			// Remove ball
			ball.destroy();
			balls.splice(i, 1);
			continue;
		}
		// Check if ball hit the ground (missed)
		if (ball.lastY < 2732 && ball.y >= 2732) {
			// Ball missed - stop music and end game
			LK.stopMusic();
			LK.showGameOver();
			return;
		}
		// Update last position for ground detection
		ball.lastY = ball.y;
		// Remove balls that are way off screen
		if (ball.y > 2800) {
			ball.destroy();
			balls.splice(i, 1);
		}
	}
	// Check Ball2 collisions and cleanup
	for (var k = balls2.length - 1; k >= 0; k--) {
		var ball2 = balls2[k];
		// Check if ball2 was caught by cube
		if (ball2.intersects(cube)) {
			// Start music on first ball catch
			if (!gameStarted) {
				LK.playMusic('backgroundMusic');
				gameStarted = true;
			}
			// Ball2 caught - increase score
			LK.setScore(LK.getScore() + 1);
			scoreTxt.setText(LK.getScore());
			// Play catch sound
			LK.getSound('catch').play();
			// Create star transformation effect at ball2 position
			var newStar = new Star();
			newStar.x = ball2.x;
			newStar.y = ball2.y;
			stars.push(newStar);
			game.addChild(newStar);
			// Add tween effect to star creation
			tween(newStar, {
				scaleX: 1.5,
				scaleY: 1.5
			}, {
				duration: 300,
				easing: tween.bounceOut
			});
			// Remove ball2
			ball2.destroy();
			balls2.splice(k, 1);
			continue;
		}
		// Check if ball2 hit the ground (missed)
		if (ball2.lastY < 2732 && ball2.y >= 2732) {
			// Ball2 missed - stop music and end game
			LK.stopMusic();
			LK.showGameOver();
			return;
		}
		// Update last position for ground detection
		ball2.lastY = ball2.y;
		// Remove balls2 that are way off screen
		if (ball2.y > 2800) {
			ball2.destroy();
			balls2.splice(k, 1);
		}
	}
	// Cleanup expired stars
	for (var s = stars.length - 1; s >= 0; s--) {
		var star = stars[s];
		if (star.lifeTime >= star.maxLifeTime) {
			stars.splice(s, 1);
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -39,8 +39,31 @@
 		anchorY: 0.5
 	});
 	return self;
 });
+var Star = Container.expand(function () {
+	var self = Container.call(this);
+	var starGraphics = self.attachAsset('star', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.lifeTime = 0;
+	self.maxLifeTime = 30; // 0.5 seconds at 60fps
+	self.update = function () {
+		self.lifeTime++;
+		// Fade out effect
+		self.alpha = 1 - self.lifeTime / self.maxLifeTime;
+		// Scale up effect
+		var scale = 1 + self.lifeTime / self.maxLifeTime * 0.5;
+		self.scaleX = scale;
+		self.scaleY = scale;
+		// Remove when lifetime exceeded
+		if (self.lifeTime >= self.maxLifeTime) {
+			self.destroy();
+		}
+	};
+	return self;
+});
 
 /**** 
 * Initialize Game
 ****/ 
@@ -55,8 +78,9 @@
 cube.x = 2048 / 2;
 cube.y = 2732 - 200;
 var balls = [];
 var balls2 = [];
+var stars = [];
 var ballTypeCounter = 0;
 var ballSpawnTimer = 0;
 var ballSpawnInterval = 20; // Spawn ball every 20 frames (faster for music sync)
 var difficultyTimer = 0;
@@ -154,8 +178,22 @@
 			LK.setScore(LK.getScore() + 1);
 			scoreTxt.setText(LK.getScore());
 			// Play catch sound
 			LK.getSound('catch').play();
+			// Create star transformation effect at ball position
+			var newStar = new Star();
+			newStar.x = ball.x;
+			newStar.y = ball.y;
+			stars.push(newStar);
+			game.addChild(newStar);
+			// Add tween effect to star creation
+			tween(newStar, {
+				scaleX: 1.5,
+				scaleY: 1.5
+			}, {
+				duration: 300,
+				easing: tween.bounceOut
+			});
 			// Remove ball
 			ball.destroy();
 			balls.splice(i, 1);
 			continue;
@@ -189,8 +227,22 @@
 			LK.setScore(LK.getScore() + 1);
 			scoreTxt.setText(LK.getScore());
 			// Play catch sound
 			LK.getSound('catch').play();
+			// Create star transformation effect at ball2 position
+			var newStar = new Star();
+			newStar.x = ball2.x;
+			newStar.y = ball2.y;
+			stars.push(newStar);
+			game.addChild(newStar);
+			// Add tween effect to star creation
+			tween(newStar, {
+				scaleX: 1.5,
+				scaleY: 1.5
+			}, {
+				duration: 300,
+				easing: tween.bounceOut
+			});
 			// Remove ball2
 			ball2.destroy();
 			balls2.splice(k, 1);
 			continue;
@@ -209,5 +261,12 @@
 			ball2.destroy();
 			balls2.splice(k, 1);
 		}
 	}
+	// Cleanup expired stars
+	for (var s = stars.length - 1; s >= 0; s--) {
+		var star = stars[s];
+		if (star.lifeTime >= star.maxLifeTime) {
+			stars.splice(s, 1);
+		}
+	}
 };
\ No newline at end of file