===================================================================
--- original.js
+++ change.js
@@ -3,30 +3,30 @@
 	self.type = type;
 	var powerupGraphics;
 	switch (type) {
 		case 'extraBullet':
-			powerupGraphics = XS.getAsset('extraBulletPowerup', 'Extra Bullet Powerup Graphics', 0.5, 0.5);
+			powerupGraphics = LK.getAsset('extraBulletPowerup', 'Extra Bullet Powerup Graphics', 0.5, 0.5);
 			break;
 		case 'shield':
-			powerupGraphics = XS.getAsset('shieldPowerup', 'Shield Powerup Graphics', 0.5, 0.5);
+			powerupGraphics = LK.getAsset('shieldPowerup', 'Shield Powerup Graphics', 0.5, 0.5);
 			break;
 		case 'speed':
-			powerupGraphics = XS.getAsset('speedPowerup', 'Speed Powerup Graphics', 0.5, 0.5);
+			powerupGraphics = LK.getAsset('speedPowerup', 'Speed Powerup Graphics', 0.5, 0.5);
 			break;
 		case 'health':
-			powerupGraphics = XS.getAsset('healthPowerup', 'Health Powerup Graphics', 0.5, 0.5);
+			powerupGraphics = LK.getAsset('healthPowerup', 'Health Powerup Graphics', 0.5, 0.5);
 			break;
 		case 'missileSpeed':
-			powerupGraphics = XS.getAsset('missileSpeedPowerup', 'Missile Speed Powerup Graphics', 0.5, 0.5);
+			powerupGraphics = LK.getAsset('missileSpeedPowerup', 'Missile Speed Powerup Graphics', 0.5, 0.5);
 			break;
 		case 'curveBullet':
-			powerupGraphics = XS.getAsset('curveBulletPowerup', 'Curve Bullet Powerup Graphics', 0.5, 0.5);
+			powerupGraphics = LK.getAsset('curveBulletPowerup', 'Curve Bullet Powerup Graphics', 0.5, 0.5);
 			break;
 		case 'scoreMultiplier':
-			powerupGraphics = XS.getAsset('scoreMultiplierPowerup', 'Score Multiplier Powerup Graphics', 0.5, 0.5);
+			powerupGraphics = LK.getAsset('scoreMultiplierPowerup', 'Score Multiplier Powerup Graphics', 0.5, 0.5);
 			break;
 		default:
-			powerupGraphics = XS.getAsset('powerup', 'Powerup Graphics', 0.5, 0.5);
+			powerupGraphics = LK.getAsset('powerup', 'Powerup Graphics', 0.5, 0.5);
 			break;
 	}
 	self.addChild(powerupGraphics);
 	self.speed = 3;
@@ -35,9 +35,9 @@
 	};
 });
 var HealthBar = Container.expand(function (maxHealth, color) {
 	var self = Container.call(this);
-	var barGraphics = XS.getAsset('healthBar', 'Health Bar Graphics', .5, 1);
+	var barGraphics = LK.getAsset('healthBar', 'Health Bar Graphics', .5, 1);
 	barGraphics.tint = color;
 	self.addChild(barGraphics);
 	self.maxHealth = maxHealth;
 	self.currentHealth = maxHealth;
@@ -48,11 +48,11 @@
 	self.intersectable = false;
 });
 var HeroBullet = Container.expand(function (acceleration, enemies, curveBullet) {
 	var self = Container.call(this);
-	var bulletGraphics = XS.getAsset('heroBullet', 'Hero Bullet Graphics', 0.5, 0.5);
+	var bulletGraphics = LK.getAsset('heroBullet', 'Hero Bullet Graphics', 0.5, 0.5);
 	self.addChild(bulletGraphics);
-	self.speed = 0;
+	self.speed = 5;
 	self.acceleration = 0.2;
 	self.curveBullet = curveBullet || 0;
 	self.move = function () {
 		self.speed += self.acceleration;
@@ -83,9 +83,9 @@
 	};
 });
 var EnemyBullet = Container.expand(function () {
 	var self = Container.call(this);
-	var bulletGraphics = XS.getAsset('enemyBullet', 'Enemy Bullet Graphics', 0.5, 0.5);
+	var bulletGraphics = LK.getAsset('enemyBullet', 'Enemy Bullet Graphics', 0.5, 0.5);
 	bulletGraphics.rotation = Math.PI;
 	self.addChild(bulletGraphics);
 	self.speed = 5;
 	self.move = function () {
@@ -94,18 +94,18 @@
 	};
 });
 var Hero = Container.expand(function () {
 	var self = Container.call(this);
-	var heroGraphics = XS.getAsset('hero', 'Hero Spaceship', 0.5, 0.5);
+	var heroGraphics = LK.getAsset('hero', 'Hero Spaceship', 0.5, 0.5);
 	self.addChild(heroGraphics);
 	self.health = 100;
 	self.healthBar = self.addChild(new HealthBar(100, 0x00ff00));
 	self.healthBar.y = -heroGraphics.height / 2 - 50;
 	self.healthBar.updateHealth(self.health);
 	self.shieldBar = self.addChild(new HealthBar(10, 0x4682B4));
 	self.shieldBar.y = self.healthBar.y - 30;
 	self.shieldBar.visible = false;
-	self.shieldEffect = XS.getAsset('shieldEffect', 'Shield Effect Graphics', 0.5, 0.5);
+	self.shieldEffect = LK.getAsset('shieldEffect', 'Shield Effect Graphics', 0.5, 0.5);
 	self.shieldEffect.visible = false;
 	self.shieldEffect.alpha = 0.5;
 	self.addChildAt(self.shieldEffect, 1);
 	self.updateShield = function () {
@@ -130,9 +130,9 @@
 	self.scoreMultiplier = 1;
 });
 var Enemy = Container.expand(function (currentWave) {
 	var self = Container.call(this);
-	var enemyGraphics = XS.getAsset('enemy', 'Enemy Spaceship', 0.5, 0.5);
+	var enemyGraphics = LK.getAsset('enemy', 'Enemy Spaceship', 0.5, 0.5);
 	self.addChild(enemyGraphics);
 	self.speed = 6;
 	self.health = 50 + currentWave * 10;
 	self.targetY = Math.random() * (2732 / 3) + enemyGraphics.height;
@@ -145,16 +145,16 @@
 	self.move = function () {
 		if (self.y < self.targetY) {
 			self.y += self.speed;
 		}
-		self.x += Math.sin((XS.ticks + self.sidewaysOffset) / 30) * 5;
+		self.x += Math.sin((LK.ticks + self.sidewaysOffset) / 30) * 5;
 		if (self.x < 0) self.x = 0;
 		if (self.x > 2048 - enemyGraphics.width) self.x = 2048 - enemyGraphics.width;
 	};
 });
 var StarField = Container.expand(function () {
 	var self = Container.call(this);
-	var starGraphics = XS.getAsset('star', 'Star Graphics', 0.5, 0.5);
+	var starGraphics = LK.getAsset('star', 'Star Graphics', 0.5, 0.5);
 	self.addChild(starGraphics);
 	self.speed = (Math.random() * 2 + 1) * 0.5;
 	self.alpha = self.speed / 2;
 	self.move = function () {
@@ -168,9 +168,9 @@
 	};
 });
 var Game = Container.expand(function () {
 	var self = Container.call(this);
-	var background = XS.getAsset('background', 'Background Graphics', 0.5, 1);
+	var background = LK.getAsset('background', 'Background Graphics', 0.5, 1);
 	background.x = 2048 / 2;
 	background.y = 2732;
 	background.alpha = 0.4;
 	self.addChild(background);
@@ -198,16 +198,16 @@
 		fill: "#ffffff",
 		defaultFont: "'Arial', sans-serif"
 	});
 	scoreText.anchor.set(0.5, 0);
-	XS.gui.topCenter.addChild(scoreText);
+	LK.gui.topCenter.addChild(scoreText);
 	var powerupLabel = new Text2('', {
 		size: 64,
 		font: "Verdana",
 		fill: "#ffffff"
 	});
 	powerupLabel.anchor.set(0.5, 0);
-	XS.gui.topCenter.addChild(powerupLabel);
+	LK.gui.topCenter.addChild(powerupLabel);
 	powerupLabel.y = scoreText.height + 10;
 	powerupLabel.visible = false;
 	function spawnWave() {
 		for (var i = 0; i < 5; i++) {
@@ -242,9 +242,9 @@
 		waveText.anchor.set(0.5, 0.5);
 		waveText.x = 2048 / 2;
 		waveText.y = 2732 / 2;
 		self.addChild(waveText);
-		XS.setTimeout(function () {
+		LK.setTimeout(function () {
 			waveText.destroy();
 		}, 2000);
 	}
 	function fireHeroBullet(enemies, curveBullet) {
@@ -308,9 +308,9 @@
 					heroBullet = null;
 					enemy.health -= 10;
 					enemy.healthBar.updateHealth(enemy.health);
 					enemy.hitEffectCounter = 10;
-					XS.effects.flashObject(enemy, 0xff0000, 1000);
+					LK.effects.flashObject(enemy, 0xff0000, 1000);
 					if (enemy.health <= 0) {
 						enemy.destroy();
 						enemies.splice(eIndex, 1);
 						score += Math.floor(100 * hero.scoreMultiplier);
@@ -329,14 +329,14 @@
 				enemyBullets.splice(index, 1);
 				if (hero.shield > 0) {
 					hero.shield--;
 					hero.updateShield();
-					XS.effects.flashObject(hero.shieldEffect, 0xff0000, 1000);
+					LK.effects.flashObject(hero.shieldEffect, 0xff0000, 1000);
 				} else {
 					hero.health -= 10;
 					hero.healthBar.updateHealth(hero.health);
 					hero.hitEffectCounter = 10;
-					XS.effects.flashObject(hero, 0xff0000, 1000);
+					LK.effects.flashObject(hero, 0xff0000, 1000);
 				}
 			}
 		}
 		for (var index = powerups.length - 1; index >= 0; index--) {
@@ -382,9 +382,9 @@
 						powerupLabel.setText('Score Multiplier +10%');
 						break;
 				}
 				powerupLabel.visible = true;
-				XS.setTimeout(function () {
+				LK.setTimeout(function () {
 					powerupLabel.visible = false;
 				}, 3000);
 			}
 		}
@@ -428,20 +428,20 @@
 			currentWave++;
 			spawnWave();
 		}
 		if (hero.health <= 0) {
-			XS.showGameOver();
+			LK.showGameOver();
 		}
-		if (XS.ticks % Math.floor(hero.fireRate) === 0) {
+		if (LK.ticks % Math.floor(hero.fireRate) === 0) {
 			fireHeroBullet(enemies, hero.curveBullet);
 			heroBullets.forEach(function (bullet) {
 				self.addChildAt(bullet, self.getChildIndex(hero));
 			});
 		}
 		enemies.forEach(function (enemy, index) {
-			if ((XS.ticks + enemy.tickOffset) % Math.max(60, 180 - currentWave * 5) === 0) {
+			if ((LK.ticks + enemy.tickOffset) % Math.max(60, 180 - currentWave * 5) === 0) {
 				fireEnemyBullet(enemy);
 			}
 		});
 	}
-	XS.on('tick', handleTick);
+	LK.on('tick', handleTick);
 });