TheMuffinMan said:No reaction commands the entire game, especially not in the 1000 Heartless War. No Drive Forms the entire game, and no Limit Attacks either. Beat the Final Boss, and Sephiroth be level 50
^Is that enough of a challenge for you?
Actually that would be impossible. If you don't use reaction commands you lose against the Final Boss. The one part he gets a hold of Sora with his beam. Your reaction command is to save Sora. If you don't use Reaction commands, you can't save him, you don't save him, you lose.
I could beat the game with no magic or drives as long as I could use reaction commands.