/**** 
* Classes
****/ 
//<Assets used in the game will automatically appear here>
// Balloon class
var Balloon = Container.expand(function () {
	var self = Container.call(this);
	var colors = [0xff0000, 0x00ff00, 0x0000ff, 0xffff00, 0xff00ff];
	var color = colors[Math.floor(Math.random() * colors.length)];
	var balloonGraphics = self.attachAsset('balloon', {
		width: 100,
		height: 150,
		color: color,
		shape: 'ellipse',
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = Math.random() * 2 + 1;
	self.update = function () {
		self.y -= self.speed;
		if (self.y < -100) {
			self.destroy();
		}
	};
	self.down = function (x, y, obj) {
		if (color === 0xff0000) {
			// Red balloon explodes
			explode(self.x, self.y);
		} else {
			// Other balloons just pop
			self.destroy();
			score++;
			scoreTxt.setText(score);
		}
	};
});
// Explosion class
var Explosion = Container.expand(function () {
	var self = Container.call(this);
	var explosionGraphics = self.attachAsset('explosion', {
		width: 200,
		height: 200,
		color: 0xffa500,
		shape: 'ellipse',
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		explosionGraphics.alpha -= 0.05;
		if (explosionGraphics.alpha <= 0) {
			self.destroy();
		}
	};
});
var Spike = Container.expand(function () {
	var self = Container.call(this);
	var spikeGraphics = self.attachAsset('spike', {
		width: 20,
		height: 20,
		color: 0x000000,
		shape: 'box',
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = Math.random() * 10 - 5;
	self.speedY = Math.random() * 10 - 5;
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		if (self.x < 0 || self.x > 2048 || self.y < 0 || self.y > 2732) {
			self.destroy();
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87ceeb // Init game with sky blue background
});

/**** 
* Game Code
****/ 
var balloons = [];
var score = 0;
var missedBalloons = 0; // Initialize missed balloons counter
var balloonSpawnInterval = 30; // Initial balloon spawn interval in ticks
var balloonSpawnCounter = 0; // Counter to track time for increasing balloon spawn rate
var scoreTxt = new Text2('0', {
	size: 150,
	fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0);
var missedTxt = new Text2('Missed: 0', {
	size: 100,
	fill: "#ff0000"
});
missedTxt.anchor.set(0.5, 0);
missedTxt.y = 200; // Position below the score text
LK.gui.top.addChild(missedTxt);
LK.gui.top.addChild(scoreTxt);
function spawnBalloon() {
	var balloon = new Balloon();
	balloon.x = Math.random() * 2048;
	balloon.y = 2732 + 100;
	balloons.push(balloon);
	game.addChild(balloon);
}
function explode(x, y) {
	var explosion = new Explosion();
	explosion.x = x;
	explosion.y = y;
	game.addChild(explosion);
	// Launch spikes in random directions
	for (var i = 0; i < 10; i++) {
		var spike = new Spike();
		spike.x = x;
		spike.y = y;
		game.addChild(spike);
	}
	// Destroy nearby balloons
	for (var i = balloons.length - 1; i >= 0; i--) {
		if (Math.abs(balloons[i].x - x) < 200 && Math.abs(balloons[i].y - y) < 200) {
			balloons[i].destroy();
			balloons.splice(i, 1);
			score++;
			scoreTxt.setText(score);
		}
	}
}
game.update = function () {
	for (var i = balloons.length - 1; i >= 0; i--) {
		balloons[i].update();
		if (balloons[i].y < -100) {
			balloons[i].destroy();
			balloons.splice(i, 1);
			missedBalloons++; // Increment missed balloons counter
			score--; // Decrement score when a balloon is missed
			scoreTxt.setText(score); // Update score text
			missedTxt.setText('Missed: ' + missedBalloons); // Update missed balloons text
		}
	}
	// Update spikes
	var spikes = game.children.filter(function (child) {
		return child instanceof Spike;
	});
	for (var i = spikes.length - 1; i >= 0; i--) {
		spikes[i].update();
		// Check for collision with balloons
		for (var j = balloons.length - 1; j >= 0; j--) {
			if (spikes[i].intersects(balloons[j])) {
				balloons[j].destroy();
				balloons.splice(j, 1);
				score++;
				scoreTxt.setText(score);
				score++;
				scoreTxt.setText(score);
			}
		}
	}
	if (LK.ticks % balloonSpawnInterval == 0) {
		spawnBalloon();
		balloonSpawnCounter++;
		if (balloonSpawnCounter >= 30) {
			// Every 30 seconds
			balloonSpawnInterval = Math.max(10, balloonSpawnInterval - 1); // Decrease interval, minimum 10 ticks
			balloonSpawnCounter = 0;
		}
	}
};
game.down = function (x, y, obj) {
	for (var i = balloons.length - 1; i >= 0; i--) {
		if (balloons[i].intersects({
			x: x,
			y: y
		})) {
			balloons[i].down(x, y, obj);
			balloons.splice(i, 1);
			score++;
			scoreTxt.setText(score);
			break;
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -85,8 +85,10 @@
 ****/ 
 var balloons = [];
 var score = 0;
 var missedBalloons = 0; // Initialize missed balloons counter
+var balloonSpawnInterval = 30; // Initial balloon spawn interval in ticks
+var balloonSpawnCounter = 0; // Counter to track time for increasing balloon spawn rate
 var scoreTxt = new Text2('0', {
 	size: 150,
 	fill: "#ffffff"
 });
@@ -157,10 +159,16 @@
 				scoreTxt.setText(score);
 			}
 		}
 	}
-	if (LK.ticks % 60 == 0) {
+	if (LK.ticks % balloonSpawnInterval == 0) {
 		spawnBalloon();
+		balloonSpawnCounter++;
+		if (balloonSpawnCounter >= 30) {
+			// Every 30 seconds
+			balloonSpawnInterval = Math.max(10, balloonSpawnInterval - 1); // Decrease interval, minimum 10 ticks
+			balloonSpawnCounter = 0;
+		}
 	}
 };
 game.down = function (x, y, obj) {
 	for (var i = balloons.length - 1; i >= 0; i--) {