What is the Final Mix Boss Fight in Kingdom Hearts 2?
actually, there are two. the first is normal xemnas like in regular kh2. the 2nd is terra, an enigmatic soldier that, strangly, can wield the keyblade too, only its more macho and MUCH bigger. beating him gives you limit form, in which you can pull off moves from kh1 like ragnaroc and ars arcana.