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.
Completed 25 levels with at least 1 other player.
Threw 500 enemies off a ledge.
Beat Marvel: Ultimate Alliance in Hard Mode.
Won 3 Arcade Mode levels consecutively.
Completed Skrull Cityscape level without defeating a single enemy.
Unlocked all the outfits for every hero.
Attained Gold on all Comic Missions.
Defeated 4000 enemies.
Won 1 Arcade Mode Level.
Completed a level with at least 1 other player.
Completed 1 level with 3 other players.
Nick Fury was unlocked as a playable hero.
Dr. Doom was utterly defeated.
Silver Surfer was unlocked as a playable hero.
The mighty Galactus was toppled.
Titannus was defeated.
Threw 50 enemies off a ledge.
Deathbird was crushed.
Performed 200 Finishing Moves.
Gladiator was defeated.
Loki was defeated.
Ymir fell to the forces of good.
Daredevil was unlocked as a playable hero.
Black Panther was unlocked as a playable hero.
Executioner and Enchantress were defeated.
Answered 150 Trivia questions correctly.
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.
Performed 50 Finishing Moves.
Tigershark and Attuma were defeated.
Answered 20 Trivia questions correctly in a row.
Answered 15 Trivia questions correctly.
M.O.D.O.K was defeated.
Defeated 100 enemies.
Fin Fang Foom was defeated.
Performed 5 Finishing Moves.
Defeated 10 enemies.
Unlocked all the outfits for Nightcrawler
Unlocked all the outfits for Cyclops.
Unlocked all the outfits for Hawkeye.
Unlocked all the outfits for the Hulk.
Cyclops has spoken with Jean.
Doom has spoken with himself.
Sabretooth has been mistaken for Wolverine.
Magneto has spoken to Xavier.
Unlocked all the outfits for Magneto.
Unlocked all the outfits for Doom.
Unlocked all the outfits for Sabretooth.
Unlocked all the outfits for Venom.