Board Thread:Naruto Discussions/@comment-25192437-20150109095203/@comment-25192437-20150111060221

BeyondRed wrote: The topic of Naruto's (and Minato's) unique transformations continues to be an endless source of confusion. Apparently, in the movie Naruto is able to manifest his chakra avatar of Kurama while in Nine-Tails Chakra Mode (not Kurama Mode), and he does so by summoning it to fight separately from himself. Also he can apparently fly without entering Six Paths Sage Mode now and his toad eye pigmentation has returned.

Maybe it's a nod to how he summoned Kurama in Road to Ninja, and how Obito manifested the Ten-Tails outside his body to use the Infinite Tsukuyomi.