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

Discovered Krom's Canyon

Rescued a groupmate from death in a co-op game

Won a duel against another player

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

Sold 50 guns to a shop

Earned level 20

Discovered Headstone Mine

Applied an elemental artifact

Killed 25 enemies with shock weapons

Killed 5 Rakk in under 10 seconds

Goal Line Clearance

Killed 25 enemies with incendiary weapons