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

/**** 
* Classes
****/ 
var Bubble = Container.expand(function (color, isGolden) {
	var self = Container.call(this);
	var bubbleAsset = isGolden ? 'goldenBubble' : 'bubble';
	var bubbleGraphics = self.attachAsset(bubbleAsset, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	if (!isGolden) {
		bubbleGraphics.tint = color;
	}
	self.isGolden = isGolden || false;
	self.color = color;
	self.noteIndex = Math.floor(Math.random() * 4);
	self.spawned = false;
	self.pulseTween = null;
	self.lastPulseTime = 0;
	// Create pulsing effect
	self.startPulse = function () {
		self.lastPulseTime = LK.ticks; // Update timing when pulsing
		if (self.pulseTween) {
			tween.stop(bubbleGraphics, {
				scaleX: true,
				scaleY: true
			});
		}
		self.pulseTween = tween(bubbleGraphics, {
			scaleX: 1.2,
			scaleY: 1.2
		}, {
			duration: 300,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(bubbleGraphics, {
					scaleX: 1.0,
					scaleY: 1.0
				}, {
					duration: 300,
					easing: tween.easeInOut
				});
			}
		});
	};
	self.pop = function () {
		var popSounds = ['pop1', 'pop2', 'pop3', 'pop4'];
		var soundToPlay = self.isGolden ? 'goldenPop' : popSounds[self.noteIndex];
		LK.getSound(soundToPlay).play();
		// Pop animation
		tween(bubbleGraphics, {
			scaleX: 1.5,
			scaleY: 1.5,
			alpha: 0
		}, {
			duration: 200,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	self.down = function (x, y, obj) {
		var currentTime = LK.ticks;
		var beatInterval = 60; // 60 ticks = 1 second at 60fps
		var beatPosition = currentTime % beatInterval;
		var timingWindow = 10; // Perfect timing window
		var isPerfectTiming = beatPosition <= timingWindow || beatPosition >= beatInterval - timingWindow;
		if (isPerfectTiming) {
			onBubblePopped(self, true);
		} else {
			onBubblePopped(self, false);
		}
	};
	return self;
});
var PerfectIndicator = Container.expand(function () {
	var self = Container.call(this);
	var indicator = self.attachAsset('perfectIndicator', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0
	});
	self.show = function (x, y) {
		self.x = x;
		self.y = y;
		indicator.alpha = 1;
		indicator.scaleX = 0.5;
		indicator.scaleY = 0.5;
		tween(indicator, {
			scaleX: 1,
			scaleY: 1,
			alpha: 0
		}, {
			duration: 500,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var bubbles = [];
var score = 0;
var combo = 0;
var health = 5;
var gameSpeed = 1;
var spawnTimer = 0;
var beatTimer = 0;
var perfectIndicators = [];
var bubbleColors = [0x4A90E2, 0xFF6B6B, 0x4ECDC4, 0xFFE66D, 0x95E1D3];
var scoreText = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
var comboText = new Text2('Combo: 0', {
	size: 60,
	fill: 0xFFD700
});
comboText.anchor.set(0, 0);
comboText.x = 50;
comboText.y = 120;
LK.gui.top.addChild(comboText);
var healthText = new Text2('♥♥♥♥♥', {
	size: 70,
	fill: 0xFF4444
});
healthText.anchor.set(1, 0);
LK.gui.topRight.addChild(healthText);
function updateUI() {
	scoreText.setText('Score: ' + score);
	comboText.setText('Combo: ' + combo);
	var hearts = '';
	for (var i = 0; i < health; i++) {
		hearts += '♥';
	}
	healthText.setText(hearts);
}
function spawnBubble() {
	var isGolden = Math.random() < 0.1; // 10% chance for golden bubble
	var color = bubbleColors[Math.floor(Math.random() * bubbleColors.length)];
	var bubble = new Bubble(color, isGolden);
	bubble.x = Math.random() * (2048 - 240) + 120;
	bubble.y = Math.random() * (2732 - 400) + 200;
	// Make sure bubble doesn't spawn too close to others
	var tooClose = false;
	for (var i = 0; i < bubbles.length; i++) {
		var distance = Math.sqrt(Math.pow(bubble.x - bubbles[i].x, 2) + Math.pow(bubble.y - bubbles[i].y, 2));
		if (distance < 180) {
			tooClose = true;
			break;
		}
	}
	if (!tooClose) {
		bubbles.push(bubble);
		game.addChild(bubble);
		bubble.spawned = true;
		bubble.lastPulseTime = LK.ticks; // Initialize timing to prevent immediate removal
		// Spawn animation
		bubble.alpha = 0;
		bubble.scaleX = 0;
		bubble.scaleY = 0;
		tween(bubble, {
			alpha: 1,
			scaleX: 1,
			scaleY: 1
		}, {
			duration: 300,
			easing: tween.easeOut
		});
	} else {
		bubble.destroy();
	}
}
function onBubblePopped(bubble, isPerfect) {
	var basePoints = bubble.isGolden ? 100 : 10;
	var points = isPerfect ? basePoints * 2 : basePoints;
	if (isPerfect) {
		combo++;
		points *= 1 + combo * 0.1;
		// Show perfect indicator
		var indicator = new PerfectIndicator();
		perfectIndicators.push(indicator);
		game.addChild(indicator);
		indicator.show(bubble.x, bubble.y);
		if (bubble.isGolden) {
			LK.effects.flashScreen(0xFFD700, 300);
		}
	} else {
		combo = 0;
	}
	score += Math.floor(points);
	// Remove bubble from array
	for (var i = 0; i < bubbles.length; i++) {
		if (bubbles[i] === bubble) {
			bubbles.splice(i, 1);
			break;
		}
	}
	bubble.pop();
	updateUI();
}
function missedBeat() {
	combo = 0;
	health--;
	LK.effects.flashScreen(0xFF0000, 200);
	LK.getSound('miss').play();
	if (health <= 0) {
		LK.showGameOver();
	}
	updateUI();
}
// Start background music
LK.playMusic('bgMusic');
game.update = function () {
	beatTimer++;
	spawnTimer++;
	// Beat visualization (pulse existing bubbles on beat)
	if (beatTimer % 60 === 0) {
		// Every second
		for (var i = 0; i < bubbles.length; i++) {
			bubbles[i].startPulse();
		}
	}
	// Spawn bubbles
	var spawnRate = Math.max(120 - Math.floor(score / 100) * 10, 60);
	if (spawnTimer >= spawnRate && bubbles.length < 8) {
		spawnBubble();
		spawnTimer = 0;
	}
	// Remove bubbles that have been on screen too long
	for (var i = bubbles.length - 1; i >= 0; i--) {
		var bubble = bubbles[i];
		if (bubble.spawned && LK.ticks - bubble.lastPulseTime > 1200) {
			// 20 seconds (doubled from 10)
			bubble.destroy();
			bubbles.splice(i, 1);
			missedBeat();
		}
	}
	// Clean up perfect indicators
	for (var j = perfectIndicators.length - 1; j >= 0; j--) {
		if (perfectIndicators[j].destroyed) {
			perfectIndicators.splice(j, 1);
		}
	}
	// Increase difficulty
	gameSpeed = 1 + score / 1000;
	// Win condition
	if (score >= 2000) {
		LK.showYouWin();
	}
};
// Initialize UI
updateUI();

===================================================================
--- original.js
+++ change.js
@@ -23,8 +23,9 @@
 	self.pulseTween = null;
 	self.lastPulseTime = 0;
 	// Create pulsing effect
 	self.startPulse = function () {
+		self.lastPulseTime = LK.ticks; // Update timing when pulsing
 		if (self.pulseTween) {
 			tween.stop(bubbleGraphics, {
 				scaleX: true,
 				scaleY: true
@@ -172,8 +173,9 @@
 	if (!tooClose) {
 		bubbles.push(bubble);
 		game.addChild(bubble);
 		bubble.spawned = true;
+		bubble.lastPulseTime = LK.ticks; // Initialize timing to prevent immediate removal
 		// Spawn animation
 		bubble.alpha = 0;
 		bubble.scaleX = 0;
 		bubble.scaleY = 0;
@@ -247,10 +249,10 @@
 	}
 	// Remove bubbles that have been on screen too long
 	for (var i = bubbles.length - 1; i >= 0; i--) {
 		var bubble = bubbles[i];
-		if (bubble.spawned && LK.ticks - bubble.lastPulseTime > 600) {
-			// 10 seconds
+		if (bubble.spawned && LK.ticks - bubble.lastPulseTime > 1200) {
+			// 20 seconds (doubled from 10)
 			bubble.destroy();
 			bubbles.splice(i, 1);
 			missedBeat();
 		}