===================================================================
--- original.js
+++ change.js
@@ -216,9 +216,9 @@
 	self.scaleUp = Math.random() < 0.5 ? true : false;
 	self.scale.x = 0.4 + Math.random();
 	self.scale.y = self.scale.x;
 	self.scaleSpeed = 0.01 + Math.random() * 0.02;
-	self.alpha = 0.5;
+	self.alpha = 1; //0.75;
 	self.reset = function () {
 		self.rotSpeed = 0.1 - Math.random() * 0.2;
 		self.speed = Math.random() * 5;
 		self.scaleUp = Math.random() < 0.5 ? true : false;
@@ -232,18 +232,15 @@
 	var ufoGraphics = self.attachAsset('ufoimage', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	self.x = 1000;
-	self.y = 2710 / 2;
 	self.moveScale = 0;
-	//self.scale = 0;
-	self.move_temp = function () {
+	self._move_migrated = function () {
 		var t = LK.ticks / 100;
-		//self.scale = 2 / (3 - Math.cos(2 * t));
+		//self.scale = 1200 / (3 - Math.cos(2 * t));
 		self.moveScale = 1800 / (3 - Math.cos(2 * t));
-		self.x = 2048 / 2 + self.moveScale * Math.cos(t);
-		self.y = 2780 / 2 + self.moveScale * Math.sin(2 * t) / 2;
+		self.x = 1024 + self.moveScale * Math.cos(t);
+		self.y = 1340 + self.moveScale * Math.sin(2 * t) / 2;
 		//console.log(self.x, self.y);
 	};
 });
 
@@ -306,9 +303,9 @@
 	anchorX: 0.5,
 	anchorY: 0.5,
 	x: 974,
 	y: 1366,
-	alpha: 0.5
+	alpha: 0.55
 });
 var moonSurface = game.addChild(new MoonSurface());
 // Add the astronaut to the scene
 var astronaut = game.addChild(new Astronaut());
@@ -340,22 +337,29 @@
 javelin.x = astronaut.x - 70;
 javelin.y = astronaut.y;
 var started = false;
 var thrown = false;
+var STARS_ON = false;
+var ASTEROIDS_ON = false;
+var UFO_ON = false;
 var particles = [];
 // TODO: After the first throw, if player survived, instead of going to game over, maybe offer a second launch, 
 // this time with an incoming asteroid field or lumnious field (powerups) in order to introduce those sequentially.
 // There could even be text clues to introduce them. 'The javelin will accellerate passing through those energy fields.'
 // Those asteroids are brittle. etc.
-for (var i = 0; i < 30; i++) {
-	var starPowerup = new StarPowerup();
-	starpowerups.push(starPowerup);
-	game.addChild(starPowerup);
+if (STARS_ON) {
+	for (var i = 0; i < 30; i++) {
+		var starPowerup = new StarPowerup();
+		starpowerups.push(starPowerup);
+		game.addChild(starPowerup);
+	}
 }
-for (var j = 0; j < 10; j++) {
-	var asteroidPowerup = new AsteroidPowerup();
-	starpowerups.push(asteroidPowerup);
-	game.addChild(asteroidPowerup);
+if (ASTEROIDS_ON) {
+	for (var j = 0; j < 10; j++) {
+		var asteroidPowerup = new AsteroidPowerup();
+		starpowerups.push(asteroidPowerup);
+		game.addChild(asteroidPowerup);
+	}
 }
 //game.addChild(ufo);
 // Create a method to launch a javelin
 function launchJavelin() {
@@ -414,13 +418,14 @@
 var playerHit = false;
 var landedCounter = 0;
 var windSpeedX = 2;
 var windSpeedY = 2;
-var ufo = new Ufo();
-ufo.x = 1000;
-ufo.y = 1300;
-game.addChild(ufo);
-// Touch event to launch a javelin
+if (UFO_ON) {
+	var ufo = new Ufo();
+	ufo.x = 1000;
+	ufo.y = 1300;
+	game.addChild(ufo);
+}
 game.on('down', function (x, y, obj) {
 	if (!started) {
 		started = true;
 		//gameLogo.alpha = 0;
@@ -505,8 +510,13 @@
 			instructionTxt.setText("Don't get hit! Tap to jump!");
 			instructionTxt.alpha = 1;
 			instructionTxt.y = -1200;
 		}
+		if (javelin.intersects(ufo)) {
+			javelin.attachAsset('aliensurfer', {
+				anchorY: 1
+			});
+		}
 		for (var i = starpowerups.length - 1; i >= 0; i--) {
 			t = starpowerups[i];
 			if (javelin.intersects(t)) {
 				if (t.type == enums.STAR) {