Board Thread:Boruto: Naruto the Movie/@comment-25139119-20150901144803/@comment-4271790-20150901171002

Okay, the nine tailed beasts have nothing to do with Six Paths Sage Mode (per databook and one user was anal about it). So even if he did use Six Paths Sage Mode, there's no guarantee he used all of the nine tailed beasts I don't think.