Z mode, Z2 mode and Z3 mode, easy...ish
Right, all you have to do is work your way through the game on easy mode, until before the last battle, save, quit, then go to options and change the difficulty settings to very hard, Z or Z2 depending on which you need, hope this helps much.
PS. chaoticjaf123, your wrong about the fusion thing, you missed out kibitoshin, sorry had to point out that you were wrong and that you obviously havent completed the game 100% like you say you have!
We have more cheats and tips for this game here, Dragon Ball Z: Budokai 3 cheats
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