Play in a co-op game with either an employee of Gearbox or someone who has this achievement
Unlocked: 19 Feb 2015 09:32:56
Kill an enemy with the Siren's action skill
Unlocked: 10 Feb 2015 11:12:21
Kill 15 enemies with the Soldier's action skill
Unlocked: 10 Feb 2015 10:46:24
Kill 15 enemies with the Berserker's action skill
Unlocked: 10 Feb 2015 09:57:08
Hell-Burbia
25Reach the end of the larger challenge in the Hell-Burbia coliseum
Unlocked: 09 Feb 2015 13:32:56
Reach the end of each of the 3 larger challenges with one character
Unlocked: 09 Feb 2015 13:32:55
Reach the end of the larger challenge in The Angelic Ruins coliseum
Unlocked: 08 Feb 2015 10:44:11
Complete all missions in Secret Armory
Unlocked: 24 Jan 2015 06:06:09
Earn level 30
Unlocked: 14 Jan 2015 11:18:06
Earn $1,000,000
Unlocked: 14 Jan 2015 11:09:31
Discover Krom's Canyon
Unlocked: 13 Jan 2015 11:43:52
I bet you never thought you'd be here.
Unlocked: 13 Jan 2015 11:18:30
Discover The Scrapyard
Unlocked: 13 Jan 2015 10:20:43
Facemelter
25Kill 25 enemies with corrosive weapons
Unlocked: 13 Jan 2015 10:01:43
Complete 5 missions in the Arid Badlands
Unlocked: Offline
Complete all missions in the Arid Badlands
Unlocked: Offline
Complete 5 missions in the Rust Commons
Unlocked: Offline
Complete all missions in the Rust Commons
Unlocked: Offline
Kill an enemy by stomping on its head
Unlocked: Offline
Mastered the technology of Pandora
Unlocked: Offline
Killed Sledge
Unlocked: Offline
Killed Krom
Unlocked: Offline
Killed Flynt
Unlocked: Offline
Killed the Rakk Hive
Unlocked: Offline
Killed the Vault Boss
Unlocked: Offline
Race around the Ludicrous Speedway in under 31 seconds
Unlocked: Offline
Apply an elemental artifact
Unlocked: Offline
Earn level 5
Unlocked: Offline
Ding! Novice
10Earn level 10
Unlocked: Offline
Ding! Expert
20Earn level 20
Unlocked: Offline
Earn level 40
Unlocked: Offline
Discover Skag Gully
Unlocked: Offline
Discover Sledge's Safe House
Unlocked: Offline
Discover Headstone Mine
Unlocked: Offline
Discover Trash Coast
Unlocked: Offline
Discover Crimson Lance Enclave
Unlocked: Offline
Discover Eridian Promontory
Unlocked: Offline
Earn level 50
Unlocked: Offline
Kill 25 enemies by ramming them with any vehicle
Unlocked: Offline
Kill 5 Rakk in under 10 seconds
Unlocked: Offline
Fence
25Sell 50 guns to a shop
Unlocked: Offline
Win an arena match
Unlocked: Offline
Duel-icious
15Win a duel against another player
Unlocked: Offline
Rescue a groupmate from death in a co-op game
Unlocked: Offline
Complete 15 missions in co-op
Unlocked: Offline
Defeated the Rakk Hive, the Vault Boss, Sledge, Krom, or Flynt in a co-op game
Unlocked: Offline
Reach proficiency level 10 with any weapon type
Unlocked: Offline
Duelinator
35Win a duel without taking damage
Unlocked: Offline
Kill 25 enemies with shock weapons
Unlocked: Offline
Pyro
25Kill 25 enemies with incendiary weapons
Unlocked: Offline
Kill 25 enemies with explosive weapons
Unlocked: Offline
Equip a class mod for your character
Unlocked: Offline
Fully Loaded
10Rescue enough Claptraps to earn 42 inventory slots
Unlocked: Offline
Kill 15 enemies with the Hunter's action skill
Unlocked: Offline
Complete the "House of the Ned" mission
Unlocked: Offline
Complete the "Jakobs Fodder" mission
Unlocked: Offline
Killed Ned...sort of
Unlocked: Offline
Killed Ned. Again.
Unlocked: Offline
Complete the "Braaaaaaaaaaaaains!" mission
Unlocked: Offline
Complete the Prove Yourself mission
Unlocked: Offline
The Gully
25Reach the end of the larger challenge in The Gully coliseum
Unlocked: Offline
Build the New Car: Monster
Unlocked: Offline
Athena, Out
25Rescue Athena
Unlocked: Offline
Destroy the Lance Depot
Unlocked: Offline
Vincible
50Kill Crawmerax the Invincible
Unlocked: Offline
Kill each of the loot midgets
Unlocked: Offline
Speed Kills
25Destroy a Lancer while in a Racer
Unlocked: Offline
Reach Level 51
Unlocked: Offline
Reach Level 61
Unlocked: Offline
Paid for a worthless tour of the world's largest bullet
Unlocked: Offline