Board Thread:Boruto: Naruto the Movie/@comment-27162446-20151105015144/@comment-26010916-20151108044122

Curse of Hatred wrote: GodlyHades wrote: Well you can't copy Rasen Shuriken, or any of the Rasengan variants. I'm pretty sure you can. A rasenshuriken is simply a rasengan + wind nature + refined shape transformation. Theoretically ,any shinobi who can use wind release could make a rasenshuriken. I'll tell why it's not possible:

> The skill required to even make the Rasen Shuriken is limited to a certain extent of shinobi. Only those who are skilled enough. I would say Uchiha's like Sasuke, Itachi, and Madara would be capable.

> Throwing the Rasen Shuriken takes skill, which Naruto can only do with Sage Mode (or after he was Rikudou enhanced, which allowed him to do in Base). Reminder that throwing the Rasen Shuriken outside of Base for non-Rikudou like characters would harm their chakra systems too.

You have to remember what Kakashi said during the FRS Arc. The jutsu is too powerful. No mere regular person could do it before, even two Geniuses Kakashi and Minato. Naruto trained ridulcously hard to pull it off, even having to use clones to increase his training. At some point he had to stop because he deemed it impossible. Naruto said, "It was like looking right and left at the same time" -- Which is why Kakashi deemed that he should try evening out each process with clones.

Even then it still took time to mature itself out and form. We've seen Uchiha's copy Ninjutsu before, but it hasn't been on spectacular levels like S Rank.