GripShift
Single Player, Xbox LIVE Multiplayer 2-4, HD (High Definition). Buy now to experience high-flying platform gaming combined with extreme stunt driving action in GripShift! Test your reflexes and bend your brain as you stunt your way through 120 insane, twisting Challenge Mode levels. Or deploy an arsenal of funky weapons and go head-to-head across 25 Race Mode tracks and 20 Deathmatch arenas. GripShift is a gravity-defying thrill ride you need to own today! There are no refunds for this item. For more information, see www.xbox.com/live/accounts.
As long as you understand going in (play the demo) that Gripshift is not a racing game (at least not in single player) you'll find that you're getting a great, fun, and intense puzzle/platformer with an amount of content that is equal to any retail game (which makes sense considering it's also a PSP title).