/**** 
* Classes
****/ 
// BigEnemy class
var BigEnemy = Container.expand(function () {
	var self = Container.call(this);
	var bigEnemyGraphics = self.attachAsset('bigEnemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 1.2; // 0.6 times the speed of a normal enemy
	self.health = 10;
	self.healthBar = self.attachAsset('healthBar', {
		anchorX: 0.5,
		anchorY: 1.0,
		y: -self.height / 2 - 10
	});
	self.update = function () {
		self.healthBar.width = self.health / 10 * 400; // Update health bar width based on health
		var dx = player.x - self.x;
		var dy = player.y - self.y;
		var angle = Math.atan2(dy, dx);
		self.x += self.speed * Math.cos(angle);
		self.y += self.speed * Math.sin(angle);
	};
});
//<Assets used in the game will automatically appear here>
// Bullet class
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 20;
	self.update = function () {
		self.x += self.speed * Math.cos(self.rotation);
		self.y += self.speed * Math.sin(self.rotation);
	};
});
// Enemy class
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 2;
	self.update = function () {
		var dx = player.x - self.x;
		var dy = player.y - self.y;
		var angle = Math.atan2(dy, dx);
		self.x += self.speed * Math.cos(angle);
		self.y += self.speed * Math.sin(angle);
	};
});
// FastEnemy class
var FastEnemy = Container.expand(function () {
	var self = Container.call(this);
	var fastEnemyGraphics = self.attachAsset('fastEnemy', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 12 * (1 + 0.85 * Math.min(1, score / 1200)); // 6 times faster than regular enemy, multiplied by 1 + Math.min(1, score/1200)
	self.update = function () {
		var dx = player.x - self.x;
		var dy = player.y - self.y;
		var angle = Math.atan2(dy, dx);
		self.x += self.speed * Math.cos(angle);
		self.y += self.speed * Math.sin(angle);
	};
});
// Player class
var Player = Container.expand(function () {
	var self = Container.call(this);
	var playerGraphics = self.attachAsset('character', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: 200,
		height: 73.58
	});
	self.rotation = 0;
	self.bullets = [];
	self.shoot = function () {
		var bullet = new Bullet();
		bullet.x = self.x;
		bullet.y = self.y;
		bullet.rotation = self.rotation;
		self.bullets.push(bullet);
		game.addChild(bullet);
	};
	self.poweredUp = false;
	self.powerUpTimer = 0;
	self.update = function () {
		// Removed power-up character sprite logic
	};
});
// PowerUp class
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerUpGraphics = self.attachAsset('powerUpCharacter', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.duration = 360; // 6 seconds at 60 FPS
	self.update = function () {
		self.duration--;
		if (self.duration <= 0) {
			self.destroy();
		}
	};
});

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

/**** 
* Game Code
****/ 
// Initialize player
var player = new Player();
player.x = 2048 / 2;
player.y = 2732 / 2;
game.addChild(player);
// Initialize score
var score = 0;
var maxScore = 0;
var scoreTxt = new Text2(score.toString(), {
	size: 100,
	fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0); // Sets anchor to the top middle of the text.
LK.gui.top.addChild(scoreTxt);
var maxScoreTxt = new Text2(maxScore.toString(), {
	size: 100,
	fill: "#ffffff"
});
maxScoreTxt.anchor.set(0.5, 1); // Sets anchor to the bottom middle of the text.
LK.gui.bottom.addChild(maxScoreTxt);
// Handle mouse move to rotate player
game.move = function (x, y, obj) {
	var localPos = game.toLocal(obj.global);
	var dx = localPos.x - player.x;
	var dy = localPos.y - player.y;
	player.rotation = Math.atan2(dy, dx);
};
// Handle mouse down to shoot
var lastShot = 0;
var mouseDown = false;
game.down = function (x, y, obj) {
	mouseDown = true;
};
game.up = function (x, y, obj) {
	mouseDown = false;
};
// Update game state
// Initialize enemies array
var enemies = [];
game.update = function () {
	// Create enemies at random points along the edge
	var spawnRate = 1.5 + 1.5 * Math.min(1, score / 1200);
	if (LK.ticks % Math.floor(60 / spawnRate) == 0) {
		var enemy = new Enemy();
		var side = Math.floor(Math.random() * 4);
		switch (side) {
			case 0:
				// top
				enemy.x = Math.random() * 2048;
				enemy.y = 0;
				break;
			case 1:
				// right
				enemy.x = 2048;
				enemy.y = Math.random() * 2732;
				break;
			case 2:
				// bottom
				enemy.x = Math.random() * 2048;
				enemy.y = 2732;
				break;
			case 3:
				// left
				enemy.x = 0;
				enemy.y = Math.random() * 2732;
				break;
		}
		enemies.push(enemy);
		game.addChild(enemy);
	}
	if (LK.ticks % Math.floor(60 * (16 - 8 * Math.min(1, score / 1200))) == 0) {
		var fastEnemy = new FastEnemy();
		var side = Math.floor(Math.random() * 4);
		switch (side) {
			case 0:
				// top
				fastEnemy.x = Math.random() * 2048;
				fastEnemy.y = 0;
				break;
			case 1:
				// right
				fastEnemy.x = 2048;
				fastEnemy.y = Math.random() * 2732;
				break;
			case 2:
				// bottom
				fastEnemy.x = Math.random() * 2048;
				fastEnemy.y = 2732;
				break;
			case 3:
				// left
				fastEnemy.x = 0;
				fastEnemy.y = Math.random() * 2732;
				break;
		}
		enemies.push(fastEnemy);
		game.addChild(fastEnemy);
	}
	if (LK.ticks % Math.floor(60 * 50) == 0) {
		var bigEnemy = new BigEnemy();
		var side = Math.floor(Math.random() * 4);
		switch (side) {
			case 0:
				// top
				bigEnemy.x = Math.random() * 2048;
				bigEnemy.y = 0;
				break;
			case 1:
				// right
				bigEnemy.x = 2048;
				bigEnemy.y = Math.random() * 2732;
				break;
			case 2:
				// bottom
				bigEnemy.x = Math.random() * 2048;
				bigEnemy.y = 2732;
				break;
			case 3:
				// left
				bigEnemy.x = 0;
				bigEnemy.y = Math.random() * 2732;
				break;
		}
		enemies.push(bigEnemy);
		game.addChild(bigEnemy);
	}
	if (mouseDown) {
		var shootInterval = player.poweredUp ? 12 : 24; // Double rate of fire when powered up
		if (LK.ticks - lastShot >= shootInterval) {
			player.shoot();
			lastShot = LK.ticks;
		}
	}
	player.update();
	for (var i = player.bullets.length - 1; i >= 0; i--) {
		player.bullets[i].update();
		if (player.bullets[i].x < 0 || player.bullets[i].x > 2048 || player.bullets[i].y < 0 || player.bullets[i].y > 2732) {
			player.bullets[i].destroy();
			player.bullets.splice(i, 1);
		} else {
			for (var j = enemies.length - 1; j >= 0; j--) {
				if (player.bullets[i].intersects(enemies[j])) {
					player.bullets[i].destroy();
					player.bullets.splice(i, 1);
					// Removed power-up character sprite attachment logic
					if (enemies[j] instanceof BigEnemy) {
						enemies[j].health -= 1;
						if (enemies[j].health <= 0) {
							// Kill all enemies and add points
							for (var k = enemies.length - 1; k >= 0; k--) {
								if (!(enemies[k] instanceof BigEnemy)) {
									enemies[k].destroy();
									enemies.splice(k, 1);
									score += 10;
								}
							}
							// Show explosion effect
							LK.effects.flashScreen(0xff0000, 1000);
							// Destroy BigEnemy
							enemies[j].destroy();
							enemies.splice(j, 1);
						}
					} else {
						enemies[j].destroy();
						enemies.splice(j, 1);
					}
					// Removed power-up character sprite attachment logic
					// Increase score and update score text
					score += 10;
					scoreTxt.setText(score.toString());
					break;
				}
			}
		}
	}
	for (var j = enemies.length - 1; j >= 0; j--) {
		if (player.intersects(enemies[j])) {
			enemies[j].destroy();
			enemies.splice(j, 1);
			// Update max score if current score is higher
			if (score > maxScore) {
				maxScore = score;
				maxScoreTxt.setText(maxScore.toString());
			}
			// Reset score to 0 and update score text
			score = 0;
			scoreTxt.setText(score.toString());
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -91,21 +91,9 @@
 	};
 	self.poweredUp = false;
 	self.powerUpTimer = 0;
 	self.update = function () {
-		if (self.poweredUp) {
-			self.powerUpTimer--;
-			if (self.powerUpTimer <= 0) {
-				self.poweredUp = false;
-				self.attachAsset('character', {
-					anchorX: 0.5,
-					anchorY: 0.5
-				});
-				self.visible = true;
-			}
-		} else {
-			self.visible = true;
-		}
+		// Removed power-up character sprite logic
 	};
 });
 // PowerUp class
 var PowerUp = Container.expand(function () {
@@ -276,17 +264,9 @@
 			for (var j = enemies.length - 1; j >= 0; j--) {
 				if (player.bullets[i].intersects(enemies[j])) {
 					player.bullets[i].destroy();
 					player.bullets.splice(i, 1);
-					if (enemies[j] instanceof FastEnemy) {
-						player.poweredUp = true;
-						player.powerUpTimer = 360; // 6 seconds at 60 FPS
-						player.attachAsset('powerUpCharacter', {
-							anchorX: 0.5,
-							anchorY: 0.5
-						});
-						player.visible = false;
-					}
+					// Removed power-up character sprite attachment logic
 					if (enemies[j] instanceof BigEnemy) {
 						enemies[j].health -= 1;
 						if (enemies[j].health <= 0) {
 							// Kill all enemies and add points
@@ -306,16 +286,9 @@
 					} else {
 						enemies[j].destroy();
 						enemies.splice(j, 1);
 					}
-					if (enemies[j] instanceof FastEnemy) {
-						player.poweredUp = true;
-						player.powerUpTimer = 360; // 6 seconds at 60 FPS
-						player.attachAsset('powerUpCharacter', {
-							anchorX: 0.5,
-							anchorY: 0.5
-						});
-					}
+					// Removed power-up character sprite attachment logic
 					// Increase score and update score text
 					score += 10;
 					scoreTxt.setText(score.toString());
 					break;