their link isn't perfect yet, they need training, so he can't use it for so long
If you're talking about the mode that Bee uses it's because he can't. But his BM is basically the same as Bee's version 3 or whatever it is
Naruto has already used BM and the 5 minutes were off.
maybe this is a stupid questions but i want to ask , why is naruto using Nine-Tails Chakra Mode instead of Tailed Beast Mode while fighting Tobi , with kakashi , bee and gai ?
and thanks.
Ya know they can just throw a Bijuu Bomb and Kakashi can kamui it out while someone attacks Tobi so that they can hit him with it and he will get incinerated by it.