In most every Kingdom Hearts game, there is always a keyblade that is considered to be the best one obtainable in the entire game from a stat standpoint. This keyblade is known as Ultima Weapon, and it always takes a great deal of effort to obtain it. That said, Ultima Weapon is arguably the easiest to obtain in Kingdom Hearts 2: Final Mix and is certainly easier than it was to obtain in Kingdom Hearts: Final Mix, although the method is similar. If you want to obtain this powerful weapon, here is how you can do so.