Here is the full list of all 58 Marvel: Ultimate Alliance achievements.
Unlocked all the outfits for Doom.
Unlocked all the outfits for Sabretooth.
Beat Marvel: Ultimate Alliance in Hard Mode.
Doom has spoken with himself.
Completed Skrull Cityscape level without defeating a single enemy.
Sabretooth has been mistaken for Wolverine
Threw 500 enemies off a ledge.
Unlocked all the outfits for Venom.
Defeated 4000 enemies.
Unlocked all the outfits for the Hulk.
Unlocked all the outfits for Nightcrawler.
Silver Surfer was unlocked as a playable hero.
Threw 50 Enemies off a ledge.
Unlocked all the outfits for Hawkeye.
Dr. Doom was utterly defeated.
Nick Fury was unlocked as a playable hero.
Black Panther was unlocked as a playable hero.
The Mighty Galactus was toppled
Titannus was defeated.
Gladiator was defeated.
Deathbird was crushed.
Loki was defeated.
Ymir fell to the forces of good.
Executioner and Enchantress were defeated.
Unlocked all the outfits for Magneto.
Daredevil was unlocked as a playable hero.
Answered 150 Trivia questions correctly.
Mephisto was struck down.
Blackheart was defeated.
Magneto has spoken to Xavier.
Arcade was Defeated.
Cyclops has spoken with Jean.
The evil Mandarin was crushed by the forces of good.
Grey Gargoyle was defeated.
Performed 200 Finishing Moves.
The Mighty Kraken was defeated.
Tigershark and Attuma were defeated.
Unlocked all the outfits for Cyclops.
M.O.D.O.K was defeated.
Threw 5 Enemies off a Ledge.
Performed 50 Finishing Moves.
Defeated 100 Enemies.
Answered 20 Trivia Questions Correctly In A Row.
Answered 15 Trivia questions correctly.
Fin Fang Foom was defeated.
Performed 5 Finishing Moves.
Defeated 10 Enemies.
Attained gold on all comic missions.
Completed a level with at least 1 other player
Completed 25 levels with at least 1 other player.
Won 1 Arcade Mode Level.
Won 20 Arcade Mode Levels.
Won 15 Arcade Mode levels consecutively.
Win 3 Arcade levels consecutively.
Won 100 Arcade Mode Levels.
Completed 1 level with 3 other players.
Completed 25 levels with 3 other players.
Unlocked ALL outfits for EVERY hero