Full list of all 12 X-Men Arcade achievements worth 200 gamerscore. It takes around 2-3 hours to unlock all of the achievements on Xbox 360.
Use a mutant power 5 times in one game.
Defeat Pyro without any player using mutant powers.
Learn that Magneto has kidnapped Professor X.
Find and use an energy pill in the Japanese version of the game.
Play in a 6-player match with five other people.
Complete Level 4 without jumping.
Have the White Queen welcome you to die.
Get fooled by Mystique with five other players in a 6-player game.
Earn at least 250 points in one game.
Complete the game in 25 minutes or less.
Complete the game on Expert difficulty.
Defeat Magneto in different play sessions with all six X-Men characters.