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

/**** 
* Classes
****/ 
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.update = function () {
		self.y += self.speed;
	};
	return self;
});
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});

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

/**** 
* Game Code
****/ 
var player = game.addChild(new Player());
player.x = 1024; // Center horizontally
player.y = 2200; // Near bottom of screen
var bullets = [];
var bulletSpawnTimer = 0;
var bulletSpawnDelay = 60; // Start spawning every 60 ticks (1 second)
var minSpawnDelay = 20; // Minimum spawn delay (maximum difficulty)
var difficultyTimer = 0;
var speedMultiplier = 1;
var gameStartTime = Date.now();
var dragNode = null;
// Score display
var scoreTxt = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Time display
var timeTxt = new Text2('Time: 0s', {
	size: 60,
	fill: 0xFFFFFF
});
timeTxt.anchor.set(0, 0);
timeTxt.x = 120;
timeTxt.y = 20;
LK.gui.topLeft.addChild(timeTxt);
function updateScore() {
	var timeAlive = Math.floor((Date.now() - gameStartTime) / 1000);
	LK.setScore(timeAlive);
	scoreTxt.setText(timeAlive);
	timeTxt.setText('Time: ' + timeAlive + 's');
}
function spawnBullet() {
	var bullet = new Bullet();
	bullet.x = Math.random() * (2048 - 100) + 50; // Random x position with margin
	bullet.y = -30; // Start above screen
	bullet.speed = (6 + Math.random() * 4) * speedMultiplier; // Apply speed multiplier
	bullets.push(bullet);
	game.addChild(bullet);
}
function increaseDifficulty() {
	var currentScore = LK.getScore();
	// Check if we've reached a new 5-point milestone
	if (currentScore > 0 && currentScore % 5 === 0) {
		// Only increase difficulty if we haven't already increased it for this score
		if (currentScore / 5 > speedMultiplier - 1) {
			speedMultiplier = Math.floor(currentScore / 5) + 1;
			// Decrease spawn delay (more bullets spawn)
			bulletSpawnDelay = Math.max(minSpawnDelay, Math.floor(60 / speedMultiplier));
		}
	}
}
function handleMove(x, y, obj) {
	if (dragNode) {
		// Keep player within screen bounds horizontally only
		dragNode.x = Math.max(40, Math.min(2008, x));
		// Keep player locked to bottom area - no vertical movement
		dragNode.y = 2200;
	}
}
game.move = handleMove;
game.down = function (x, y, obj) {
	// Set drag node to player for any touch on screen
	dragNode = player;
	handleMove(x, y, obj);
};
game.up = function (x, y, obj) {
	dragNode = null;
};
game.update = function () {
	updateScore();
	increaseDifficulty();
	// Spawn bullets
	bulletSpawnTimer++;
	if (bulletSpawnTimer >= bulletSpawnDelay) {
		spawnBullet();
		bulletSpawnTimer = 0;
	}
	// Update and check bullets
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		// Initialize tracking variables
		if (bullet.lastY === undefined) bullet.lastY = bullet.y;
		if (bullet.lastIntersecting === undefined) bullet.lastIntersecting = false;
		// Check if bullet went off screen
		if (bullet.lastY <= 2800 && bullet.y > 2800) {
			bullet.destroy();
			bullets.splice(i, 1);
			continue;
		}
		// Check collision with player
		var currentIntersecting = bullet.intersects(player);
		if (!bullet.lastIntersecting && currentIntersecting) {
			// Collision detected - game over
			LK.getSound('hit').play();
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
			return;
		}
		// Update tracking variables
		bullet.lastY = bullet.y;
		bullet.lastIntersecting = currentIntersecting;
	}
};

===================================================================
--- original.js
+++ change.js
@@ -91,11 +91,12 @@
 	}
 }
 function handleMove(x, y, obj) {
 	if (dragNode) {
-		// Keep player within screen bounds
+		// Keep player within screen bounds horizontally only
 		dragNode.x = Math.max(40, Math.min(2008, x));
-		dragNode.y = Math.max(40, Math.min(2692, y));
+		// Keep player locked to bottom area - no vertical movement
+		dragNode.y = 2200;
 	}
 }
 game.move = handleMove;
 game.down = function (x, y, obj) {