This week sees the release of not one but two Xbox Live Arcade games to the service. Aces of the Galaxy will be made available for 800 Microsoft Points (10 real people dollars), and Roogoo will be made available for 800 Microsoft points also.

Aces of the Galaxy promises old-school arcade, thrill-ride enjoyment. It comes with online play in the form of co-op, so you and a friend can battle it out together to reign supreme in the galaxy. With online leader boards collecting your high scores from the campaign, there is plenty for you to get your teeth into.

Roogoo is a puzzle game which features unique 3-D puzzle mechanics where players guide shaped blocks through rotating disks in order to bring them to the ground for high scores and to defeat the evil Meemoo. With 45 levels to go through and online multiplayer head to head, there is plenty to do in Roogoo.