How do you get final form in Kingdom of Hearts 2

well u have to have beaten demyx at hollow basation the compleat eather mulans world or beastcastle to get to olympic colocium then compleate pain and panic cup to get the second cup ...now make sure u have enough drive to use master form now enter the second cup and the moment u start it go into master form then as soon as ur in that press start and hit retry and i should be there in ur drive menu if its not keep doing it till you do hope it helps
Omarzimbabwaye: that's not entirely true. sure you could get it by doing that, but i got mine fighting saix when i when i turned valor. so, maybe you gotta be a certain level or do something specific. (please give me a trust point this is true i swear)
you have to defeat roxas at the world that never was then turn master form until you get it during the cerberus cup....