/**** 
* Classes
****/ 
var Axe = Container.expand(function () {
	var self = Container.call(this);
	var axeGraphics = self.attachAsset('axe', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 40;
	self.gravity = 0.3; // Adjusted gravity effect
	self.velocityY = -self.speed; // Initial upward velocity
	self._move_migrated = function () {
		self.velocityY += self.gravity; // Apply gravity to velocity
		self.y += self.velocityY; // Update position with velocity
		self.rotation += 0.1;
	};
});
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.direction = 1;
	self.scaleFactor = 0.1; // Initial small scale
	self.growthRate = 0.01; // Rate at which the enemy grows
	self._move_migrated = function () {
		// Randomize direction change
		if (Math.random() < 0.05) {
			self.direction = Math.random() * 2 * Math.PI; // Random angle
		}
		// Update position based on direction
		self.x += self.speed * Math.cos(self.direction);
		self.y += self.speed * Math.sin(self.direction);
		// Keep enemy within bounds
		if (self.x <= 0 || self.x >= 2048) {
			self.direction = Math.PI - self.direction; // Reflect horizontally
		}
		if (self.y <= 0 || self.y >= 2732) {
			self.direction = -self.direction; // Reflect vertically
		}
		// Increase size until normal size is reached
		if (self.scaleFactor < 1) {
			self.scaleFactor += self.growthRate;
			self.scale.set(self.scaleFactor, self.scaleFactor);
		}
	};
});
var Target = Container.expand(function () {
	var self = Container.call(this);
	var targetGraphics = self.attachAsset('target', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.direction = 1;
	self._move_migrated = function () {
		self.x += self.speed * self.direction;
		if (self.x <= 0 || self.x >= 2048) {
			self.direction *= -1;
		}
	};
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
var background = game.attachAsset('green_grass_field', {});
background.width = 2048;
background.height = 2732;
var targets = [];
var axes = [];
var score = 0;
var kills = 0;
var level = 1;
var levelTxt = new Text2('Level: 1', {
	size: 100,
	fill: 0xFFFFFF,
	font: "Impact",
	dropShadow: true,
	dropShadowColor: 0x000000
});
levelTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(levelTxt);
var targetSpeed = 5;
var enemies = [];
var scoreTxt = new Text2('0', {
	size: 150,
	fill: 0xFFFFFF,
	font: "Impact",
	dropShadow: true,
	dropShadowColor: 0x000000
});
scoreTxt.anchor.set(.5, 0);
LK.gui.top.addChild(scoreTxt);
// Add button-1 to the bottom right corner
var button1 = game.attachAsset('button-1', {
	anchorX: 1.0,
	anchorY: 1.0,
	x: 2048,
	y: 2732
});
game.addChild(button1);
// Add button-2 next to button-1 at the top
var button2 = game.attachAsset('button-2', {
	anchorX: 1.0,
	anchorY: 1.0,
	x: button1.x - button1.width - 20,
	// 20px space between buttons
	y: button1.y
});
game.addChild(button2);
// Initialize button cost
var buttonCost = 100;
// Display the price next to button-1
var buttonPriceTxt = new Text2(buttonCost.toString(), {
	size: 100,
	fill: 0xFF0000,
	font: "Impact",
	dropShadow: true,
	dropShadowColor: 0x000000
});
buttonPriceTxt.anchor.set(1, 1);
buttonPriceTxt.x = button1.x - button1.width / 2;
buttonPriceTxt.y = button1.y - button1.height / 2;
game.addChild(buttonPriceTxt);
// Initialize button cost
var buttonCost = 100;
// Add event listener for button-1
button1.down = function (x, y, obj) {
	if (score >= buttonCost) {
		// Play button sound
		LK.getSound('button-1').play();
		// Shrink button
		button1.scale.set(0.9, 0.9);
		LK.setTimeout(function () {
			// Expand button back to normal size
			button1.scale.set(1.0, 1.0);
		}, 100);
		score -= buttonCost;
		scoreTxt.setText(score);
		buttonCost += 50;
		buttonPriceTxt.setText(buttonCost.toString());
		// Vaporize enemies with spinning and falling effect
		for (var i = 0; i < enemies.length; i++) {
			(function (enemy) {
				var _spinAndFall = function spinAndFall() {
					enemy.rotation += 0.1;
					enemy.speed = (enemy.speed || 10) * 1.05; // Increase speed by 5% each frame
					enemy.y += enemy.speed;
					if (enemy.y > 2732) {
						enemy.destroy();
					} else {
						LK.setTimeout(_spinAndFall, 16);
					}
				};
				_spinAndFall();
			})(enemies[i]);
		}
		enemies = [];
	}
};
var spawnTargets = function spawnTargets() {
	for (var i = 0; i < 3; i++) {
		var target = game.addChild(new Target());
		target.speed = targetSpeed;
		target.x = Math.random() * 2048;
		target.y = Math.random() * (2732 - target.height * 2);
		targets.push(target);
	}
	for (var i = 0; i < 1; i++) {
		var enemy = game.addChild(new Enemy());
		enemy.speed = targetSpeed;
		enemy.x = Math.random() * 2048;
		enemy.y = Math.random() * (2732 - enemy.height * 2);
		enemies.push(enemy);
	}
};
LK.on('tick', function () {
	if (targets.length == 0) {
		spawnTargets();
	}
});
var axe;
game.on('down', function (x, y, obj) {
	var pos = game.toLocal(obj.global);
	axe = game.addChild(new Axe());
	LK.getSound('axe').play();
	axe.x = pos.x;
	axe.y = 2732 - axe.height + 295;
	axes.push(axe);
});
LK.on('tick', function () {
	for (var i = 0; i < targets.length; i++) {
		targets[i]._move_migrated();
	}
	for (var i = 0; i < axes.length; i++) {
		axes[i]._move_migrated();
		if (axes[i].y < -50) {
			axes[i].destroy();
			axes.splice(i, 1);
		}
		if (axes[i].y <= 0) {
			LK.showGameOver();
		}
	}
	for (var i = 0; i < enemies.length; i++) {
		enemies[i]._move_migrated();
		for (var j = 0; j < axes.length; j++) {
			if (axes[j].intersects(enemies[i])) {
				LK.showGameOver();
				return;
			}
		}
	}
	for (var i = 0; i < axes.length; i++) {
		for (var j = 0; j < targets.length; j++) {
			if (axes[i].intersects(targets[j])) {
				var distance = Math.sqrt(Math.pow(axes[i].x - targets[j].x, 2) + Math.pow(axes[i].y - targets[j].y, 2));
				score += Math.max(0, 100 - distance) + 50;
				scoreTxt.setText(score);
				axes[i].destroy();
				axes.splice(i, 1);
				targets[j].destroy();
				targets.splice(j, 1);
				kills++;
				if (kills % 3 == 0) {
					targetSpeed += 1;
					level++;
					levelTxt.setText('Level: ' + level);
				}
				break;
			}
		}
	}
});

===================================================================
--- original.js
+++ change.js
@@ -73,23 +73,11 @@
 
 /**** 
 * Game Code
 ****/ 
-// Create dark night sky background
-game.setBackgroundColor(0x0F0F23);
-// Create stars in the background
-var stars = [];
-for (var i = 0; i < 100; i++) {
-	var star = game.attachAsset('star', {
-		anchorX: 0.5,
-		anchorY: 0.5,
-		x: Math.random() * 2048,
-		y: Math.random() * 2732,
-		scaleX: Math.random() * 0.5 + 0.5,
-		scaleY: Math.random() * 0.5 + 0.5
-	});
-	stars.push(star);
-}
+var background = game.attachAsset('green_grass_field', {});
+background.width = 2048;
+background.height = 2732;
 var targets = [];
 var axes = [];
 var score = 0;
 var kills = 0;
@@ -121,8 +109,17 @@
 	x: 2048,
 	y: 2732
 });
 game.addChild(button1);
+// Add button-2 next to button-1 at the top
+var button2 = game.attachAsset('button-2', {
+	anchorX: 1.0,
+	anchorY: 1.0,
+	x: button1.x - button1.width - 20,
+	// 20px space between buttons
+	y: button1.y
+});
+game.addChild(button2);
 // Initialize button cost
 var buttonCost = 100;
 // Display the price next to button-1
 var buttonPriceTxt = new Text2(buttonCost.toString(), {