Mad Moxxi's Underdome Riot, the second downloadable content for RPG shooter Borderlands, is now available for the Xbox 360. The PS3 and PC releases will follow shortly.

Underdome tests players' skills in a deadly new area. They'll battle scores of enemies while obeying the rules decreed by Moxxi the emcee. New equipment, two extra skillpoints, and a bank feature are included with the DLC as well.

The PS3 will receive the new content on January 7th. The PC release is currently pegged as "early 2010."