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