Mastered the technology of Pandora

Played in a co-op game with either an employee of Gearbox or someone who had this trophy

Killed an enemy with the Siren's action skill

Killed 15 enemies with the Soldier's action skill

Discovered The Scrapyard

Emerged victorious from an arena match

Won a duel without taking damage

Completed 15 missions in co-op

Earned level 20

Equipped a class mod for your character

Sold 50 guns to a shop

Discovered Sledge's Safe House

Killed 25 enemies by ramming them with any vehicle