Huge week for the Xbox Live Arcade this week with four big releases!

SkyDriftis now available for 1200MSP, a flying racer with Mario-Kart style powerups and a stunning art design.

Crimson Alliance is available with a very weird release style -- the full game is "technically" free, but is merely the demo. Instead you can either buy all of the classes for 1200MSP, or each one for 800MSP each, if you think you'll only play as the Wizard, Assassin or Merc.

The third Kinect based downloadable game is also available, and it actually looks really awesome -- LeedMees is a Lemmings-style game where you use your body to help little dudes get to their home. Grab it for 800MSP!

Lastly, but not least, BloodRayne: Betrayal from Wayforward (and Majesco, I guess), a side scrolling slashing adventure is available for 1200MSP.

Outside of the main releases, we also have a bunch of new pieces of DLC -- the Space Capsule DLC for Fruit Ninja Kinect for 160MSP, the Time Attack Pack for Worms 2: Armageddon for 320MSP, 20 new puzzles for Crazy Machines Elements for 240MSP, and Character Color Pack 1 for Street Fighter III for 240MSP.