Killed an enemy with the Siren's action skill

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

Won a duel without taking damage

Earned level 30

Killed Krom

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

Killed 25 enemies with corrosive weapons

Completed 5 missions in the Rust Commons

Earned level 20

Equipped a class mod for your character

Killed Sledge

Discovered Headstone Mine