Full list of all 81 Borderlands: Game of the Year Edition trophies - 59 bronze, 17 silver, 4 gold and 1 platinum.
The base game contains 51 trophies, and there are 4 DLC packs containing 30 trophies.
You have defeated all bosses and are a powerful force to be reckoned with
Killed 15 enemies with the Hunter's action skill
Killed an enemy with the Siren's action skill
Earned level 50
Play with at least two other players.
Raced around the Ludicrous Speedway in record time
Rescued enough Claptraps to earn 42 inventory slots
Killed 15 enemies with the Soldier's action skill
Completed 15 missions in co-op
Earned level 40
I bet you never thought you'd be here
Emerged victorious from an arena match
Defeated the Rakk Hive, the Vault Boss, Sledge, Krom, or Flynt in a co-op game
Completed all missions in the Rust Commons
Rescued a groupmate from death in a co-op game
Won a duel against another player
Won a duel without taking damage
Killed the Vault Boss
Discovered Eridian Promontory
Discovered Crimson Lance Enclave
Killed Flynt
Killed the Rakk Hive
Mastered the technology of Pandora
Earned $1,000,000
Earned level 30
Discovered Trash Coast
Killed Krom
Discovered Krom's Canyon
Killed 25 enemies with corrosive weapons
Discovered The Scrapyard
Completed 5 missions in the Rust Commons
Reached proficiency level 10 with any weapon type
Sold 50 guns to a shop
Completed all missions in the Arid Badlands
Earned level 20
Equipped a class mod for your character
Killed Sledge
Killed 25 enemies with shock weapons
Killed 5 Rakk in under 10 seconds
Applied an elemental artifact
Discovered Headstone Mine
Killed 25 enemies with incendiary weapons
Discovered Sledge's Safe House
Killed 25 enemies with explosive weapons
Killed 25 enemies by ramming them with any vehicle
Earned level 10
Killed 15 enemies with the Berserker's action skill
Earned level 5
Discovered Skag Gully
Killed an enemy plumber-style
Completed 5 missions in the Arid Badlands
Completed the "Braaaaaaaaaaaaains!" mission
Killed Ned. Again.
Killed Ned...sort of
Completed the "Jakobs Fodder" mission
Completed the "House of the Ned" mission
Completed the larger challenge in The Angelic Ruins coliseum
Completed each of the larger challenges in all 3 coliseums
Completed the larger challenge in The Gully coliseum
Completed the larger challenge in the Hell-Burbia coliseum
Completed the lesser challenge in all 3 coliseums
Completed all missions in Secret Armory
Paid for a worthless tour of the world's largest bullet
Killed each of the loot midgets
Killed Crawmerax the Invincible
Reached Level 61
Destroyed Lance Depot
Reached Level 51
Destroyed a Lancer while in a Racer
Rescued Athena
Built the New Car: Monster
Found 25 oil cans
Collected 15 Claptrap bobbleheads
Collected 3 panties, 5 fish in a bag, and 15 pizzas
Found all 6 Claptrap statues
Collected 5 3D glasses
Completed a crazy request for Tannis
Killed the Interplanetary Ninja Assassin Claptrap
Killed Commandant Steele-trap
Killed Dr. Ned-trap
Killed General Knoxx-trap