the problem is that the Mangakyou sharingan is Genjutsu, he manipulates your mind as he sees fits, so the key to a good genjutsu is knowing your opponents mind and yours, meaning that if the experience your'e trying to cause is unfammiliar by the target, it just won't work, becuase he doesn't know the feeling. So since nobody can be bigger (stronger, faster, etc, etc) than the kyubi, the demon won't feel anything even if Itachi can visualize himself as a giant crushing ants.Originally posted by: chambers
death boo z iam not saying that itachi COULD defeat the fox or racoon, but i think your forgetting that itachi controls EVERYTHING. if he wanted to he could step on the fox like it was an ant, or become the size of a microbe and anihilate him from the inside. it was stated that he controls every thing within his mind so i doubt anything would be able to stand once its in. gai is on the right track try to avoid it, i also dont think the monsters would be suceptable to it at all.
the second point, is that we don't know if the Kyubi can be effected by genjutsu, he's described as a natrual disaster, like a storm or an earthquake, i doubt any of them has a conciounse and a mind set similar to that of a person.
oh, and if Itachi doesn't want to fight Jiraya becuase it'd be dangerous, do you really think he'll fight Kyubi? Itachi will run away and shit his pants faster than you can say 'Sasgay'...