Starting on December 11th, Xbox 360 owners can partake in a new global competition from Microsoft called the Xbox Live Arcade Challenge. The first two games involved are Lumines Live! (December 17th to 23rd) and Small Arms (December 24th to 30th), which are part of tournaments specifically for Xbox Live Arcade gamers.

The competition will feature prizes, including Hitachi Plasma screens and HD-DVD drives.

For more information and rules, visits http://www.xboxlivetournament.com/Default.aspx.