Killed General Knoxx-trap

Killed 15 enemies with the Berserker's action skill

Raced around the Ludicrous Speedway in record time

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

Killed an enemy plumber-style

Rescued a groupmate from death in a co-op game

Emerged victorious from an arena match

Discovered Eridian Promontory

Completed all missions in the Rust Commons

Reached Level 51

Destroyed a Lancer while in a Racer

Destroyed Lance Depot

Rescued Athena