===================================================================
--- original.js
+++ change.js
@@ -65,21 +65,33 @@
 	var obstacleGraphics = self.attachAsset('obstacle', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	//self.angleSpeed = 0.01;
 	self.orbitSpeed = -0.01;
 	self.move = function () {
-		// Obstacle move logic
-		//var angleSpeed = -0.01 * self.parent.direction; //self.orbitSpeed;
-		//self.radius = self.parent.width / 2 - self.width / 2;
 		self.radius = self.parent.width / 2 * (1900 / self.parent.width) - self.width / 2 * (100 / self.width);
 		self.angle = (self.angle || 0) + self.orbitSpeed;
 		self.angle %= Math.PI * 2;
 		self.x = self.radius * Math.cos(self.angle);
 		self.y = self.radius * Math.sin(self.angle);
 	};
 });
+// New Obstacle Type class
+var ObstacleTypeB = Container.expand(function () {
+	var self = Container.call(this);
+	var obstacleGraphics = self.attachAsset('obstacleTypeB', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.orbitSpeed = 0.015;
+	self.move = function () {
+		self.radius = self.parent.width / 2 * (1900 / self.parent.width) - self.width / 2 * (100 / self.width);
+		self.angle = (self.angle || 0) + self.orbitSpeed;
+		self.angle %= Math.PI * 2;
+		self.x = self.radius * Math.cos(self.angle);
+		self.y = self.radius * Math.sin(self.angle);
+	};
+});
 // Powerup class
 var Powerup1 = Container.expand(function () {
 	var self = Container.call(this);
 	var powerup1Graphics = self.attachAsset('powerup1', {
@@ -138,18 +150,16 @@
 	//orbitGraphicsMask.alpha = 0.1;
 	orbitGraphicsMask.width = self.width - 200;
 	orbitGraphicsMask.height = self.height - 200;
 	self.addBarrier = function (speed, index) {
-		var barrier = new Obstacle();
+		var barrier;
+		if (Math.random() < 0.5) {
+			barrier = new Obstacle();
+		} else {
+			barrier = new ObstacleTypeB();
+		}
 		barrier.orbitSpeed = speed;
-		//barrier.angle = index * (Math.PI * 2 / 20);
 		barrier.angle = Math.random() * (Math.PI * 2);
-		/*
-		barrier.move = function () {
-		barrier.angle += barrier.orbitSpeed * (self.direction === 1 ? 1 : -1);
-		barrier.x = self.x + (self.width - barrier.width) / 2 * Math.cos(barrier.angle);
-		barrier.y = self.y + (self.height - barrier.height) / 2 * Math.sin(barrier.angle);
-		};*/
 		self.addChild(barrier);
 		obstacles.push(barrier);
 	};
 	self.addPowerup = function (index) {