Borderlands: Mad Moxxi’s Underdome Riot Achievements

Achievements

Unlockable How to Unlock
Big Tournament (40G) Reach the end of each of the 3 larger challenges with one character.
Hell-Burbia (25G) Reach the end of the larger challenge in the Hell-Burbia colliseum.
Small Tournament (10G) Complete the Prove Yourself Mission
The Angellic Ruins (25G) Reach the end of the larger challenge in The Angellic Ruins colliseum.
The Gully (25G) Reach the end of the larger challenge in The Gully colliseum.