var BlockedFollower = Container.expand(function (enemy) {
	var self = Container.call(this);
	self.enemy = enemy;
	self.followDuration = 500;
	self.followStartTime = LK.ticks;
	self.move = function () {
		self.x = self.enemy.x;
		self.y = self.enemy.y;
		LK.setTimeout(function () {
			if (self.parent) {
				self.move();
			}
		}, LK.tickDuration);
	};
});
var Star = Container.expand(function () {
	var self = Container.call(this);
	var starGraphics = self.createAsset('star', 'Star asset', .5, .5);
	self.move = function () {
		this.x += 4;
	};
});
var WaveMessage = Container.expand(function (waveIndex) {
	var self = Container.call(this);
	var messageImage = self.createAsset('wave' + waveIndex, 'Wave ' + (waveIndex + 1) + ' Image', .5, .5);
	self.addChild(messageImage);
	this.setMessage = function (customMessage) {
		var messageText = new Text2(customMessage, {
			size: 60,
			fill: "#ffffff",
			font: "'Press Start 2P', monospace",
			fontWeight: 'bold',
			stroke: '#000000',
			strokeThickness: 5,
			dropShadow: true,
			dropShadowColor: '#000000',
			dropShadowBlur: 8,
			dropShadowAngle: Math.PI / 6,
			dropShadowDistance: 12
		});
		messageText.anchor.set(0, .5);
		messageText.x = messageImage.width / 1.5;
		messageText.y = messageImage.height * 0.1;
		self.addChild(messageText);
	};
});
var SpatialGrid = Container.expand(function (cellSize) {
	var self = Container.call(this);
	self.cellSize = cellSize;
	self.grid = {};
	self._cellKey = function (x, y) {
		var cellX = Math.floor(x / self.cellSize);
		var cellY = Math.floor(y / self.cellSize);
		return cellX + ':' + cellY;
	};
	self.insert = function (object) {
		var key = self._cellKey(object.x, object.y);
		if (!self.grid[key]) {
			self.grid[key] = [];
		}
		self.grid[key].push(object);
	};
	self.retrieve = function (x, y) {
		var key = self._cellKey(x, y);
		return self.grid[key] || [];
	};
	self.clear = function () {
		self.grid = {};
	};
});
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.createAsset('hero', 'Hero character', .5, .5);
	self.targetPosition = null;
	self.setTargetPosition = function (x, y) {
		self.targetPosition = {
			x: x,
			y: Math.max(y, 250)
		};
	};
	self.move = function () {
		if (self.targetPosition) {
			var dx = self.targetPosition.x - this.x;
			var dy = self.targetPosition.y - this.y;
			var magnitude = Math.sqrt(dx * dx + dy * dy);
			if (magnitude > 5) {
				this.x += dx / magnitude * 10;
				this.y += dy / magnitude * 10;
			} else {
				this.x = self.targetPosition.x;
				this.y = self.targetPosition.y;
				self.targetPosition = null;
			}
		}
	};
	self.shoot = function () {};
});
var EnemyWave0 = Container.expand(function (enemyCount) {
	var self = Container.call(this);
	self.enemyCount = 1;
	var enemyGraphics = self.createAsset('enemyWave0', 'Enemy Wave 0 character', .5, .5);
	self.move = function (heroX, heroY) {
		var dx = heroX - this.x;
		var dy = heroY - this.y;
		var magnitude = Math.sqrt(dx * dx + dy * dy);
		var speed = 3 + enemySpeedIncrease;
		var newX = this.x + dx / magnitude * speed;
		var newY = this.y + dy / magnitude * speed;
		var minX = 600, maxX = 1500, minY = 100, maxY = 200;
		newX = Math.max(minX, Math.min(newX, maxX));
		newY = Math.max(minY, Math.min(newY, maxY));
		this.x = newX;
		this.y = newY;
	};
});
var EnemyWave1 = Container.expand(function (enemyCount) {
	var self = Container.call(this);
	self.enemyCount = 10;
	var enemyGraphics = self.createAsset('enemyWave1', 'Enemy Wave 1 character', .5, .5);
	self.move = function (heroX, heroY) {
		var dx = heroX - this.x;
		var dy = heroY - this.y;
		var magnitude = Math.sqrt(dx * dx + dy * dy);
		var speed = 3 + enemySpeedIncrease;
		this.x += dx / magnitude * speed;
		this.y += dy / magnitude * speed;
	};
});
var EnemyWave2 = Container.expand(function (enemyCount) {
	var self = Container.call(this);
	self.enemyCount = 5;
	var enemyGraphics = self.createAsset('enemyWave2', 'Enemy Wave 2 character', .5, .5);
	self.move = function (heroX, heroY) {
		var dx = heroX - this.x;
		var dy = heroY - this.y;
		var magnitude = Math.sqrt(dx * dx + dy * dy);
		var speed = 2 + enemySpeedIncrease;
		this.x += dx / magnitude * speed;
		this.y += dy / magnitude * speed;
	};
});
var EnemyWave3 = Container.expand(function (enemyCount) {
	var self = Container.call(this);
	self.enemyCount = 6;
	var enemyGraphics = self.createAsset('enemyWave3', 'Enemy Wave 3 character', .5, .5);
	self.move = function (heroX, heroY) {
		var dx = heroX - this.x;
		var dy = heroY - this.y;
		var magnitude = Math.sqrt(dx * dx + dy * dy);
		var speed = 2.5 + enemySpeedIncrease;
		this.x += dx / magnitude * speed;
		this.y += dy / magnitude * speed;
	};
});
var EnemyWave4 = Container.expand(function (enemyCount) {
	var self = Container.call(this);
	self.enemyCount = 15;
	var enemyGraphics = self.createAsset('enemyWave4', 'Enemy Wave 4 character', .5, .5);
	self.move = function (heroX, heroY) {
		var dx = heroX - this.x;
		var dy = heroY - this.y;
		var magnitude = Math.sqrt(dx * dx + dy * dy);
		var speed = 3.5 + enemySpeedIncrease;
		this.x += dx / magnitude * speed;
		this.y += dy / magnitude * speed;
	};
});
var EnemyWave5 = Container.expand(function (enemyCount) {
	var self = Container.call(this);
	self.enemyCount = 1;
	var enemyGraphics = self.createAsset('enemyWave5', 'Enemy Wave 5 character', .5, .5);
	self.move = function (heroX, heroY) {
		var dx = heroX - this.x;
		var dy = heroY - this.y;
		var magnitude = Math.sqrt(dx * dx + dy * dy);
		var speed = 7 + enemySpeedIncrease;
		this.x += dx / magnitude * speed;
		this.y += dy / magnitude * speed;
	};
});
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('heroBullet', 'Hero Bullet', .5, .5);
	self.move = function () {
		this.y -= 5;
	};
});
var EnemyBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('enemyBullet', 'Enemy Bullet', .5, .5);
	self.move = function (heroX, heroY) {
		var dx = heroX - this.x;
		var dy = heroY - this.y;
		var magnitude = Math.sqrt(dx * dx + dy * dy);
		this.x += dx / magnitude * 2;
		this.y += dy / magnitude * 2;
	};
});
var enemySpeedIncrease = 0;
var Game = Container.expand(function () {
	var self = Container.call(this);
	self.isGamePaused = true;
	stage.on('down', function (obj) {
		var pos = obj.event.getLocalPosition(self);
		hero.setTargetPosition(pos.x, pos.y);
	});
	var background = self.createAsset('background', 'Game Background', 0, 0);
	background.width = 2048;
	background.height = 2532;
	background.y = 200;
	self.addChild(background);
	var centerLine = self.createAsset('whiteLine', 'Center Line', 0, 0);
	centerLine.width = 2048;
	centerLine.height = 10;
	centerLine.y = 2732 / 2;
	self.addChild(centerLine);
	var centerCircle = self.createAsset('centerCircle', 'Center Circle', 0.5, 0.5);
	centerCircle.width = 100;
	centerCircle.height = 100;
	centerCircle.x = 2048 / 2;
	centerCircle.y = centerLine.y;
	self.addChild(centerCircle);
	var topArea = LK.getAsset('topArea', 'Top Area', 0, 0);
	topArea.width = 2048;
	topArea.height = 200;
	self.addChild(topArea);
	var horizontalLine = LK.getAsset('horizontalLine', 'Horizontal Line', 0, 0);
	horizontalLine.width = 2048;
	horizontalLine.height = 10;
	horizontalLine.y = 200;
	self.addChild(horizontalLine);
	self.getEnemyCountForWave = function (waveIndex) {
		switch (waveIndex % 6) {
			case 0:
				return 1;
			case 1:
				return 10;
			case 2:
				return 3;
			case 3:
				return 4;
			case 4:
				return 8;
			case 5:
				return 1;
		}
	};
	var goal = self.createAsset('goal', 'Goal asset', 0.5, 0.5);
	goal.width = 1100;
	goal.height = 200;
	goal.x = 2048 / 2;
	goal.y = goal.height / 2;
	self.addChild(goal);
	LK.stageContainer.setBackgroundColor(0x000000);
	var countdownTxt = new Text2('3', {
		size: 200,
		fill: "#ffffff",
		font: "'Press Start 2P', monospace",
		anchor: {
			x: 0.5,
			y: 0.5
		}
	});
	countdownTxt.x = 2048 / 2;
	countdownTxt.y = 2732 / 2;
	LK.gui.addChild(countdownTxt);
	var countdown = 3;
	var countdownTimer = LK.setInterval(function () {
		countdown--;
		if (countdown > 0) {
			countdownTxt.setText(countdown.toString());
		} else {
			LK.clearInterval(countdownTimer);
			LK.gui.removeChild(countdownTxt);
			self.isGamePaused = false;
			startGameTimer();
			var scoreTxt = new Text2('0', {
				size: 120,
				fill: "#ffffff",
				font: "'Press Start 2P', monospace",
				dropShadow: true,
				dropShadowColor: '#000000',
				dropShadowBlur: 4,
				dropShadowAngle: Math.PI / 6,
				dropShadowDistance: 6
			});
			scoreTxt.anchor.set(0, 0.5);
			scoreTxt.x = 110;
			scoreTxt.y = timerTxt.y + 60;
			LK.gui.addChild(scoreTxt);
			scoreTxt.parent.setChildIndex(scoreTxt, scoreTxt.parent.children.length - 1);
			LK.gui.addChild(self.timerTxt);
			self.timerTxt.parent.setChildIndex(self.timerTxt, self.timerTxt.parent.children.length - 1);
		}
	}, 1000);
	var temporary = self.createAsset('temporary', 'Temporary asset', 0, 0);
	temporary.width = 2048;
	temporary.height = 2732;
	temporary.x = 0;
	temporary.y = 0;
	LK.setTimeout(function () {
		temporary.destroy();
	}, 3000);
	var score = 0;
	var timerTxt = new Text2(':60', {
		size: 120,
		fill: "#ffffff",
		font: "'Press Start 2P', monospace",
		dropShadow: true,
		dropShadowColor: '#000000',
		dropShadowBlur: 4,
		dropShadowAngle: Math.PI / 6,
		dropShadowDistance: 6
	});
	timerTxt.anchor.set(0.5, 0);
	timerTxt.x = 2048 / 2 + 210;
	timerTxt.y = 20;
	self.timerTxt = timerTxt;
	var enemies = [];
	var waveIndex = 0;
	var maxWaveCount = 6;
	var waveTimer = 600;
	var waveInterval = 600;
	var gameTime = 60;
	var gameTimer;
	var startGameTimer = function () {
		gameTimer = LK.setInterval(function () {
			if (gameTime > 0) {
				gameTime--;
				var minutes = Math.floor(gameTime / 60);
				var seconds = gameTime % 60;
				var formattedTime = (minutes > 0 ? minutes.toString().padStart(2, '0') : '') + ':' + seconds.toString().padStart(2, '0');
				timerTxt.setText(formattedTime);
			} else {
				LK.clearInterval(gameTimer);
				LK.showGameOver('Game Over! Your score: ' + score.toString());
			}
		}, 1000);
	};
	var heroBullets = [];
	self.messageTimeouts = [];
	var enemyBullets = [];
	var hero = new Hero();
	hero.x = 2048 / 2;
	hero.y = 2732 - 700;
	var bulletTimer = 0;
	var bulletInterval = 100;
	LK.on('tick', function () {
		if (self.isGamePaused) return;
		hero.move();
		bulletTimer++;
		if (bulletTimer >= bulletInterval) {
			var newBullet = new HeroBullet();
			newBullet.x = hero.x;
			newBullet.y = hero.y;
			heroBullets.push(newBullet);
			self.addChild(newBullet);
			bulletTimer = 0;
		}
		if (waveIndex < maxWaveCount) {
			waveTimer++;
		}
		if (waveTimer >= waveInterval && waveIndex < maxWaveCount) {
			var waveMessages = ['Kick off time!', 'EMPTY', 'Kids want a selfie!', 'Time for the press!', 'HOOLIGANS incoming!!', 'SIIIUU!'];
			var waveMessage = new WaveMessage(waveIndex);
			waveMessage.setMessage(waveMessages[waveIndex % waveMessages.length]);
			switch (waveIndex % 6) {
				case 0:
					waveMessage.x = 0;
					waveMessage.y = 1700;
					break;
				case 1:
					waveMessage.x = 150;
					waveMessage.y = 1700;
					break;
				case 2:
					waveMessage.x = 150;
					waveMessage.y = 1700;
					break;
				case 3:
					waveMessage.x = 150;
					waveMessage.y = 1700;
					break;
				case 4:
					waveMessage.x = 150;
					waveMessage.y = 1700;
					break;
				case 5:
					waveMessage.x = 150;
					waveMessage.y = 1700;
					break;
			}
			LK.gui.addChild(waveMessage);
			LK.gui.setChildIndex(waveMessage, LK.gui.children.length - 1);
			var messageTimeout = LK.setTimeout((function (waveMessageRef) {
				return function () {
					LK.gui.removeChild(waveMessageRef);
					waveMessageRef.destroy();
				};
			})(waveMessage), 4000);
			self.messageTimeouts.push(messageTimeout);
			if (waveIndex == 0) {
				for (var i = 0; i < self.getEnemyCountForWave(waveIndex); i++) {
					var newEnemy = new EnemyWave0(self.getEnemyCountForWave(waveIndex));
					newEnemy.x = 1000;
					newEnemy.y = 300;
					enemies.push(newEnemy);
					self.addChild(newEnemy);
				}
				for (var i = 0; i < self.getEnemyCountForWave(waveIndex + 1); i++) {
					var newEnemy = new EnemyWave1(self.getEnemyCountForWave(waveIndex + 1));
					newEnemy.x = Math.random() * 2048;
					newEnemy.y = 300;
					enemies.push(newEnemy);
					self.addChild(newEnemy);
				}
				waveIndex += 2;
			} else {
				for (var i = 0; i < self.getEnemyCountForWave(waveIndex); i++) {
					var newEnemy;
					var enemyCount = self.getEnemyCountForWave(waveIndex);
					switch (waveIndex % 6) {
						case 0:
							newEnemy = new EnemyWave0(enemyCount);
							newEnemy.x = 1000;
							newEnemy.y = 0;
							break;
						case 1:
							newEnemy = new EnemyWave1(enemyCount);
							newEnemy.x = Math.random() * 2048;
							newEnemy.y = 0;
							break;
						case 2:
							newEnemy = new EnemyWave2(enemyCount);
							newEnemy.x = Math.random() * 2048;
							newEnemy.y = 2732;
							break;
						case 3:
							newEnemy = new EnemyWave3(enemyCount);
							var side = Math.random() < 0.5 ? 0 : 2048;
							newEnemy.x = side;
							newEnemy.y = Math.random() * 2732;
							break;
						case 4:
							newEnemy = new EnemyWave4(enemyCount);
							var side = Math.floor(Math.random() * 3);
							switch (side) {
								case 0:
									newEnemy.x = 0;
									newEnemy.y = Math.random() * 2732;
									break;
								case 1:
									newEnemy.x = 2048;
									newEnemy.y = Math.random() * 2732;
									break;
								case 2:
									newEnemy.x = Math.random() * 2048;
									newEnemy.y = 2732;
									break;
							}
							break;
						case 5:
							newEnemy = new EnemyWave5(enemyCount);
							newEnemy.x = 1000;
							newEnemy.y = 2732;
							break;
					}
					enemies.push(newEnemy);
					self.addChild(newEnemy);
				}
				waveIndex++;
			}
			waveTimer = 0;
		}
		var spatialGrid = new SpatialGrid(100);
		for (var i = 0; i < enemies.length; i++) {
			spatialGrid.insert(enemies[i]);
		}
		for (var i = 0; i < enemies.length; i++) {
			var enemy = enemies[i];
			var nearbyEnemies = spatialGrid.retrieve(enemy.x, enemy.y);
			enemy.move(hero.x, hero.y);
			var collisionThreshold = 20;
			var heroRadius = hero.width / 2;
			var enemyRadius = enemy.width / 2;
			var dx = hero.x - enemy.x;
			var dy = hero.y - enemy.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance < heroRadius + enemyRadius) {
				self.messageTimeouts.forEach(function (timeout) {
					LK.clearTimeout(timeout);
				});
				LK.gui.removeChild(self.timerTxt);
				LK.showGameOver('Game Over! Your score: ' + score.toString());
				LK.gui.children.forEach(function (child) {
					if (child instanceof Text2) {
						child.destroy();
					}
				});
				LK.gui.removeChildren();
				return;
			}
			for (var j = 0; j < nearbyEnemies.length; j++) {
				var otherEnemy = nearbyEnemies[j];
				if (otherEnemy !== enemy && enemy.intersects(otherEnemy)) {
					var overlapX = enemy.x - otherEnemy.x;
					var overlapY = enemy.y - otherEnemy.y;
					var overlapMagnitude = Math.sqrt(overlapX * overlapX + overlapY * overlapY);
					var separationDistance = 100;
					for (var j = 0; j < nearbyEnemies.length; j++) {
						var otherEnemy = nearbyEnemies[j];
						if (otherEnemy !== enemy && enemy.intersects(otherEnemy)) {
							var overlapX = enemy.x - otherEnemy.x;
							var overlapY = enemy.y - otherEnemy.y;
							var overlapMagnitude = Math.sqrt(overlapX * overlapX + overlapY * overlapY);
							if (overlapMagnitude < separationDistance) {
								var separationFactor = (separationDistance - overlapMagnitude) / overlapMagnitude;
								enemy.x += overlapX / overlapMagnitude * separationFactor;
								enemy.y += overlapY / overlapMagnitude * separationFactor;
								otherEnemy.x -= overlapX / overlapMagnitude * separationFactor;
								otherEnemy.y -= overlapY / overlapMagnitude * separationFactor;
							}
						}
					}
				}
			}
		}
		spatialGrid.clear();
		for (var i = heroBullets.length - 1; i >= 0; i--) {
			heroBullets[i].move(goal.x, goal.y);
			if (heroBullets[i].intersects(goal)) {
				var successAsset = self.createAsset('success', 'Success Asset', .5, .5);
				var dx = goal.x - heroBullets[i].x;
				var dy = goal.y - heroBullets[i].y;
				var magnitude = Math.sqrt(dx * dx + dy * dy);
				successAsset.x = heroBullets[i].x;
				successAsset.y = heroBullets[i].y - 70;
				self.addChild(successAsset);
				LK.setTimeout(function () {
					successAsset.destroy();
				}, 1000);
				heroBullets[i].destroy();
				heroBullets.splice(i, 1);
				score++;
				enemySpeedIncrease += 0.1;
				scoreTxt.setText(score.toString());
				continue;
			}
			for (var j = 0; j < enemies.length; j++) {
				if (heroBullets[i] && heroBullets[i].intersects(enemies[j])) {
					heroBullets[i].destroy();
					heroBullets.splice(i, 1);
					break;
				}
			}
		}
		for (var i = 0; i < enemyBullets.length; i++) {
			enemyBullets[i].move();
		}
	});
});

===================================================================
--- original.js
+++ change.js
@@ -260,15 +260,10 @@
 			x: 0.5,
 			y: 0.5
 		}
 	});
-	var temporary = self.createAsset('temporary', 'Temporary asset', 0, 0);
-	temporary.width = 2048;
-	temporary.height = 2732;
-	temporary.x = 0;
-	temporary.y = 0;
-	countdownTxt.x = temporary.x + temporary.width / 2;
-	countdownTxt.y = temporary.y + temporary.height / 2;
+	countdownTxt.x = 2048 / 2;
+	countdownTxt.y = 2732 / 2;
 	LK.gui.addChild(countdownTxt);
 	var countdown = 3;
 	var countdownTimer = LK.setInterval(function () {
 		countdown--;
@@ -370,9 +365,9 @@
 			var waveMessage = new WaveMessage(waveIndex);
 			waveMessage.setMessage(waveMessages[waveIndex % waveMessages.length]);
 			switch (waveIndex % 6) {
 				case 0:
-					waveMessage.x = 150;
+					waveMessage.x = 0;
 					waveMessage.y = 1700;
 					break;
 				case 1:
 					waveMessage.x = 150;