Discovered Krom's Canyon

Killed 25 enemies with corrosive weapons

Completed 5 missions in the Rust Commons

Mastered the technology of Pandora

Earned level 20

Killed 25 enemies with shock weapons

Won a duel against another player

Completed 15 missions in co-op

Defeated the Rakk Hive, the Vault Boss, Sledge, Krom, or Flynt in a co-op game

Rescued a groupmate from death in a co-op game

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

Killed 15 enemies with the Soldier's action skill