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.