Single Player, HD (High Definition). Wasn't that cool? Well, it gets even cooler. Purchase the full version of RoboBlitz and you'll get even more weapons, more baddies, and more of that juicy physics magic you just can't get anywhere else on Xbox Live Arcade. See if you can score the full billion points. Buy RoboBlitz today! There are no refunds for this item. For more information, see www.xbox.com/live/accounts.