var BossRocket = Container.expand(function () {
	var self = Container.call(this);
	var rocketGraphics = self.createAsset('bossRocket', 'Boss Rocket', .5, .5);
	self.speed = 15;
	self.move = function () {
		self.y += self.speed;
	};
});
var BossLaser = Container.expand(function () {
	var self = Container.call(this);
	var laserGraphics = self.createAsset('bossLaser', 'Boss Laser', .5, .5);
	self.speed = 10;
	self.move = function () {
		self.y += self.speed;
	};
});
var NinjaLaser = Container.expand(function () {
	var self = Container.call(this);
	var laserGraphics = self.createAsset('bossLaser', 'Boss Laser', .5, .5);
	self.speed = 20;
	self.move = function () {
		self.y -= self.speed;
	};
});
var Boss = Container.expand(function () {
	var self = Container.call(this);
	var bossGraphics = self.createAsset('boss', 'Evil Boss', .5, .5);
	self.health = 100;
	self.speed = 8;
	self.move = function () {
		var directions = ['left', 'right'];
		var direction = directions[Math.floor(Math.random() * directions.length)];
		if (direction === 'left' && self.x > 0) {
			self.x -= self.speed * 2;
		} else if (direction === 'right' && self.x < 2048 - self.width) {
			self.x += self.speed * 2;
		}
		if (Math.random() < 0.5) {
			self.shootLaser();
		}
	};
	self.shootLaser = function () {
		var laser = new BossLaser();
		laser.x = self.x;
		laser.y = self.y + self.height / 2;
		self.parent.bossLasers.push(laser);
		self.parent.addChild(laser);
	};
	self.takeDamage = function (amount) {
		self.health -= amount;
		if (self.health <= 0) {
			LK.showWin();
			self.destroy();
		}
	};
});
var NinjaHero = Container.expand(function () {
	var self = Container.call(this);
	var ninjaGraphics = self.createAsset('ninjaHero', 'Ninja Hero', .5, .5);
	self.on('down', function () {
		self.throwLaser();
	});
	self.speed = 5;
	self.move = function (direction) {
		if (direction === 'left' && self.x > 0) self.x -= self.speed; else if (direction === 'right' && self.x < 2048 - self.width) self.x += self.speed; else if (direction === 'up' && self.y > 0) self.y -= self.speed; else if (direction === 'down' && self.y < 2732 - self.height) self.y += self.speed;
	};
	self.throwLaser = function () {
		var laser = new NinjaLaser();
		laser.x = self.x;
		laser.y = self.y - self.height / 2;
		self.parent.ninjaLasers.push(laser);
		self.parent.addChild(laser);
		LK.setScore(LK.getScore() + 10);
	};
});
var HeroBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('heroBullet', 'Hero Bullet', .5, .5);
	self.speed = 15;
	self.move = function () {
		self.y -= self.speed;
	};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	self.currentLevel = 1;
	self.maxLevel = 5;
	self.levelDifficulty = [1, 2, 3, 4, 5];
	self.levelBossHealth = [100, 150, 200, 250, 300];
	var cityBackground = self.createAsset('cityBackground', 'City Background', 0, 0);
	cityBackground.width = 2048;
	cityBackground.height = 2732;
	self.addChildAt(cityBackground, 0);
	var ninjaHero = self.addChild(new NinjaHero());
	ninjaHero.x = 2048 / 2;
	ninjaHero.y = 2732 - ninjaHero.height;
	this.ninjaLasers = [];
	this.bossLasers = [];
	this.heroBullets = [];
	var boss = self.addChild(new Boss());
	boss.x = 2048 / 2;
	boss.y = 100;
	boss.health = self.levelBossHealth[self.currentLevel - 1];
	self.on('down', function (obj) {
		var event = obj.event;
		var pos = event.getLocalPosition(self);
		ninjaHero.x = pos.x;
		ninjaHero.y = pos.y;
	});
	self.advanceLevel = function () {
		if (self.currentLevel < self.maxLevel) {
			self.currentLevel++;
			boss.health = self.levelBossHealth[self.currentLevel - 1];
		} else {
			LK.showWin();
		}
	};
	LK.on('tick', function () {
		for (var i = self.ninjaLasers.length - 1; i >= 0; i--) {
			self.ninjaLasers[i].move();
			if (self.ninjaLasers[i].y < -50) {
				self.ninjaLasers[i].destroy();
				self.ninjaLasers.splice(i, 1);
			} else if (self.ninjaLasers[i].intersects(boss)) {
				boss.takeDamage(100);
				self.ninjaLasers[i].destroy();
				self.ninjaLasers.splice(i, 1);
			}
		}
		for (var i = self.bossLasers.length - 1; i >= 0; i--) {
			self.bossLasers[i].move();
			if (self.bossLasers[i].y > 2732) {
				self.bossLasers[i].destroy();
				self.bossLasers.splice(i, 1);
			} else if (self.bossLasers[i].intersects(ninjaHero)) {
				LK.showGameOver();
				self.bossLasers[i].destroy();
				self.bossLasers.splice(i, 1);
			}
		}
	});
});

===================================================================
--- original.js
+++ change.js
@@ -48,9 +48,9 @@
 	};
 	self.takeDamage = function (amount) {
 		self.health -= amount;
 		if (self.health <= 0) {
-			LK.showWinScreen();
+			LK.showWin();
 			self.destroy();
 		}
 	};
 });