You completed 10 melee counters in 4 minutes.

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

Killed 15 enemies with the Berserker's action skill

Killed 15 enemies with the Hunter's action skill

Reached Level 51

Raced around the Ludicrous Speedway in record time

Rescued a groupmate from death in a co-op game

Won a duel without taking damage

Destroyed Lance Depot

Rescued Athena

Completed all missions in the Arid Badlands

Discovered Eridian Promontory

Killed Flynt