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

/**** 
* Classes
****/ 
var Balloon = Container.expand(function (balloonType) {
	var self = Container.call(this);
	var balloonColors = ['redBalloon', 'blueBalloon', 'greenBalloon', 'yellowBalloon'];
	var chosenType = balloonType;
	if (!chosenType) {
		// 1 in 75 chance for power-up balloon
		if (Math.random() < 1 / 75) {
			chosenType = 'powerUpBalloon';
		} else {
			chosenType = balloonColors[Math.floor(Math.random() * balloonColors.length)];
		}
	}
	var balloonGraphics = self.attachAsset(chosenType, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Set balloon properties based on type
	if (chosenType === 'redBalloon') {
		self.speed = 1.5;
		self.points = 10;
	} else if (chosenType === 'blueBalloon') {
		self.speed = 2.0;
		self.points = 15;
	} else if (chosenType === 'greenBalloon') {
		self.speed = 1.0;
		self.points = 5;
	} else if (chosenType === 'powerUpBalloon') {
		self.speed = 1.2;
		self.points = 25;
		self.isPowerUp = true;
	} else {
		self.speed = 2.5;
		self.points = 20;
	}
	self.balloonType = chosenType;
	self.popped = false;
	self.update = function () {
		if (!self.popped) {
			self.y -= self.speed;
		}
	};
	self.pop = function () {
		if (!self.popped) {
			self.popped = true;
			if (self.isPowerUp) {
				LK.getSound('powerup').play();
				// Activate double bullets for 5 seconds
				doubleBulletsActive = true;
				doubleBulletsTimer = 300; // 5 seconds at 60fps
			} else {
				LK.getSound('pop').play();
			}
			LK.setScore(LK.getScore() + self.points);
			scoreTxt.setText(LK.getScore());
			// Pop animation
			tween(self, {
				scaleX: 1.5,
				scaleY: 1.5,
				alpha: 0
			}, {
				duration: 200,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	};
	return self;
});
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 12;
	self.update = function () {
		self.y -= self.speed;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
// Game variables
var balloons = [];
var bullets = [];
var balloonSpawnTimer = 0;
var balloonSpawnRate = 120; // frames between spawns
var dangerLineY = 200;
var gameStarted = false;
var doubleBulletsActive = false;
var doubleBulletsTimer = 0;
// Create danger line
var dangerLine = game.addChild(LK.getAsset('dangerLine', {
	anchorX: 0,
	anchorY: 0.5,
	x: 0,
	y: dangerLineY
}));
// Score display
var scoreTxt = new Text2('0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
scoreTxt.y = 60;
// Instructions text
var instructionTxt = new Text2('TAP TO SHOOT\nPOP BALLOONS BEFORE THEY REACH THE RED LINE!', {
	size: 60,
	fill: 0xFFFFFF
});
instructionTxt.anchor.set(0.5, 0.5);
game.addChild(instructionTxt);
instructionTxt.x = 2048 / 2;
instructionTxt.y = 2732 / 2;
// Start game on first tap
game.down = function (x, y, obj) {
	if (!gameStarted) {
		gameStarted = true;
		game.removeChild(instructionTxt);
	}
	// Shoot bullet(s)
	if (doubleBulletsActive) {
		// Shoot two bullets slightly apart
		var bullet1 = new Bullet();
		bullet1.x = x - 30;
		bullet1.y = 2732 - 100;
		bullet1.lastY = bullet1.y;
		bullets.push(bullet1);
		game.addChild(bullet1);
		var bullet2 = new Bullet();
		bullet2.x = x + 30;
		bullet2.y = 2732 - 100;
		bullet2.lastY = bullet2.y;
		bullets.push(bullet2);
		game.addChild(bullet2);
	} else {
		// Shoot single bullet
		var bullet = new Bullet();
		bullet.x = x;
		bullet.y = 2732 - 100;
		bullet.lastY = bullet.y;
		bullets.push(bullet);
		game.addChild(bullet);
	}
	LK.getSound('shoot').play();
};
// Spawn balloon function
function spawnBalloon() {
	var balloon = new Balloon();
	balloon.x = Math.random() * (2048 - 160) + 80; // Keep within screen bounds
	balloon.y = 2732 + 50; // Start below screen
	balloon.lastY = balloon.y;
	balloon.lastCrossedDangerLine = false;
	balloons.push(balloon);
	game.addChild(balloon);
}
game.update = function () {
	if (!gameStarted) return;
	// Update double bullets timer
	if (doubleBulletsActive) {
		doubleBulletsTimer--;
		if (doubleBulletsTimer <= 0) {
			doubleBulletsActive = false;
		}
	}
	// Spawn balloons
	balloonSpawnTimer++;
	if (balloonSpawnTimer >= balloonSpawnRate) {
		spawnBalloon();
		balloonSpawnTimer = 0;
		// Increase difficulty over time
		if (balloonSpawnRate > 30) {
			balloonSpawnRate -= 0.5;
		}
	}
	// Update and check balloons
	for (var i = balloons.length - 1; i >= 0; i--) {
		var balloon = balloons[i];
		if (balloon.popped) continue;
		// Check if balloon crossed danger line
		var currentCrossedDangerLine = balloon.y <= dangerLineY;
		if (!balloon.lastCrossedDangerLine && currentCrossedDangerLine) {
			// Game over
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		balloon.lastCrossedDangerLine = currentCrossedDangerLine;
		// Remove balloons that go off top of screen
		if (balloon.lastY >= -100 && balloon.y < -100) {
			balloon.destroy();
			balloons.splice(i, 1);
			continue;
		}
		balloon.lastY = balloon.y;
	}
	// Update and check bullets
	for (var j = bullets.length - 1; j >= 0; j--) {
		var bullet = bullets[j];
		// Remove bullets that go off screen
		if (bullet.lastY >= -50 && bullet.y < -50) {
			bullet.destroy();
			bullets.splice(j, 1);
			continue;
		}
		// Check bullet-balloon collisions
		for (var k = balloons.length - 1; k >= 0; k--) {
			var balloon = balloons[k];
			if (!balloon.popped && bullet.intersects(balloon)) {
				balloon.pop();
				bullet.destroy();
				bullets.splice(j, 1);
				balloons.splice(k, 1);
				break;
			}
		}
		if (bullets[j]) {
			bullet.lastY = bullet.y;
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -10,10 +10,10 @@
 	var self = Container.call(this);
 	var balloonColors = ['redBalloon', 'blueBalloon', 'greenBalloon', 'yellowBalloon'];
 	var chosenType = balloonType;
 	if (!chosenType) {
-		// 35% chance for power-up balloon
-		if (Math.random() < 0.35) {
+		// 1 in 75 chance for power-up balloon
+		if (Math.random() < 1 / 75) {
 			chosenType = 'powerUpBalloon';
 		} else {
 			chosenType = balloonColors[Math.floor(Math.random() * balloonColors.length)];
 		}