Originally posted by: Hotsuma
He didn't borrow chakra from Kyuubi to fight against Kabuto. (Though, I can be wrong. Been a while since I read it)

What I don't really understand about the Kyuubi Naruto against Haku is that when Haku removed his mask (revealing that he met Naruto in the forest earlier), he *somehow* completely returned to normal. So, that kinda makes me wonder what it would take to revert him back.
some sort of sexy no jutsu maybe.