Borderlands Game of the Year Enhanced achievements

Earned level 50

Won a duel against another player

Play with at least two other players.

Destroyed Lance Depot

Rescued Athena

Completed all missions in the Rust Commons

Killed 15 enemies with the Hunter's action skill

Completed the "Jakobs Fodder" mission

Killed 15 enemies with the Soldier's action skill

Rescued enough Claptraps to earn 42 inventory slots

Built the New Car: Monster

Completed the "House of the Ned" mission