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