xmen: Wolverine, Colossus, Cyclops, Nightcrawler, Iceman, jean grey, Storm, Gambit and Beast.
morals on, fights take place in a deserted new york city, xmen get an hour prep before each fight.
Bonus round intentionally impossibly hard.
Joker, Bane, mister freeze, Two-face, Penguin, Clayface, Black mask and Killer croc.
Captain boomerang, Captain cold, Trickster, weather wizard and Gorilla Grodd.
Sinestro and Atrocitus.
Mongul, Metallo and Lex luthor (in power suit)
Despero, Black adam, Bizarro and Darkseid. Shadowcat and jubilee can join the xmen for the bonus round.