im not saying mix wrestling into the game, im saying having a game with more characters, all their specials, some character editors, basically they were a company that did everything right, the only downside were good n64 graphics on n64. Otherwise, if you wanted it..then it was probably in there. Wrestling is pretty deep, so its hard to do.
like for instance. Say i wanted to play as the wrstler Sting, well sting has had multiple persona's and costumes, well if i wanted to switch then they'd be there, and theyd be there for like 60-65 characters, each wrestler has a set of moves that they do, and those would all be there as well. The game actually gameplay wise was similar to smash bros in that its just combinations of a and b and how you held them and what direction you pressed.
http://ign64.ign.com/articles/164/164737p1.html