Borderlands DLC Trailer: Welcome to the Underdome

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[youtube]http://www.youtube.com/watch?v=4oAACxJJHhI[/youtube]

The DLC will Brings a new Riot Mode  players will face off against increasing waves of enemies. the DLC will cost $10, The DLC wil come out for the Xbox 360 on December 29 and PlayStation 3 on January 7, PC is unknown at this point.