Borderlands achievements

You have defeated all bosses and are a powerful force to be reckoned with

Collected 15 Claptrap bobbleheads

Collected 3 panties, 5 fish in a bag, and 15 pizzas

Found 25 oil cans

Completed each of the larger challenges in all 3 coliseums

Completed the larger challenge in The Angelic Ruins coliseum

Completed the larger challenge in the Hell-Burbia coliseum

Completed the larger challenge in The Gully coliseum

Completed all missions in Secret Armory

Found all 6 Claptrap statues

Killed each of the loot midgets

Killed Crawmerax the Invincible