Originally Posted by killerrabbit9
Something just occurred to me. Apparently Naruto needs this key to completely unlock the fox yet the fox was always trying to get Naruto to release the seal as if he could. So did the fox not understand the seal or is there more than one way to release the seal?
with the key naruto received he should be able to control the Nine-Tailed Demon Fox without lossing control, if naruto were just give control over the fox, the fox would be in control and naruto would just be along for the ride.
since the Nine-Tailed Demon Fox is the strongest out of all the tailed beasts, there is probably little chance that anyone could gain control of it (even Killer Bee if he was it's host) on their own or try to reason with it. which is probably why minato left the scroll behind, so it could help naruto tame the fox and make it its beotch.
Note: this is just a theory, no more stupid or illogical than anyone else’s