Full list of all 58 Marvel: Ultimate Alliance achievements worth 1,250 gamerscore.
The base game contains 46 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 12 achievements worth 250 Gamerscore.
Won 100 Arcade Mode Levels.
Completed 25 levels with 3 other players.
Won 20 Arcade Mode Levels.
Won 15 Arcade Mode levels consecutively.
Won 3 Arcade Mode levels consecutively.
Won 1 Arcade Mode Level.
Beat Marvel: Ultimate Alliance in Hard Mode.
Answered 150 Trivia questions correctly.
Answered 20 Trivia questions correctly in a row.
Unlocked all the outfits for every hero.
Silver Surfer was unlocked as a playable hero.
Defeated 4000 enemies.
Performed 200 Finishing Moves.
Threw 500 enemies off a ledge.
Daredevil was unlocked as a playable hero.
Completed 25 levels with at least 1 other player.
Completed 1 level with 3 other players.
Answered 15 Trivia questions correctly.
Threw 50 enemies off a ledge.
Completed Skrull Cityscape level without defeating a single enemy.
Nick Fury was unlocked as a playable hero.
Dr. Doom was utterly defeated.
The mighty Galactus was toppled.
Titannus was defeated.
Deathbird was crushed.
Gladiator was defeated.
Loki was defeated.
Ymir fell to the forces of good.
Executioner and Enchantress were defeated.
Performed 50 Finishing Moves.
Black Panther was unlocked as a playable hero.
Mephisto was struck down.
Blackheart was defeated.
Threw 5 enemies off a ledge.
Arcade was defeated.
The evil Mandarin was crushed by the forces of good.
Grey Gargoyle was defeated.
The mighty Kraken was defeated.
Tigershark and Attuma were defeated.
Performed 5 Finishing Moves.
M.O.D.O.K was defeated.
Defeated 100 enemies.
Fin Fang Foom was defeated.
Completed a level with at least 1 other player.
Defeated 10 enemies.
Attained Gold on all Comic Missions.
Cyclops has spoken with Jean.
Unlocked all the outfits for Cyclops.
Unlocked all the outfits for Hawkeye.
Unlocked all the outfits for the Hulk.
Unlocked all the outfits for Nightcrawler
Doom has spoken with himself.
Sabretooth has been mistaken for Wolverine.
Magneto has spoken to Xavier.
Unlocked all the outfits for Doom.
Unlocked all the outfits for Magneto.
Unlocked all the outfits for Venom.
Unlocked all the outfits for Sabretooth.