Final Form
If you haven't got final form yet here's a tip:
I discovered this form after I defeated Xigbar, the first boss in the world that never was. Go around different worlds and change into any drive form, there is no guarantee this will happen straight the first time but there is a tiny chance. I got Final in Radiant Garden (Hollow Bastion) whilst trainig wisdom form. Final form is a silvery white colour and rocks hardcore. Hope I helped!
More tricks, tips and cheats for this game are right here - Kingdom Hearts II cheats
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