Originally Posted by Vishnu
What has Itachi to do with the Rasengan? It's not one of his moves, it's not characteristic to him to use something like Rasengan when he has such an array of jutsu.Honestly i don't see how you reached the conclusion that it may be Itachi.
Also Konohamaru is not Naruto to just "sneak" into the war. All the Genin's are kept aside from this war to prevent their death. A kid with a chakra ball as best offense jutsu doesn't stand a chance against a Dust element user. I must say that even the Jonins like Kakashi don't stand a chance against Mu. It's obviously Naruto. Gaara's exclamation supports that. The Rasengan supports that. The bunshins he made supports that. Apply Occam's Razor. So, it's Naruto.
I just thought it because Kakashi also copied it with Sharingan that it might be Itachi, further didn't Itachi advise Naruto to go for Madara and leave the Edo's to him? The possibility of it being Konohamaru is that he kind of is rather like Naruto, brainless heading into danger (also as Genin and I don't think I must list this) so that was my idea. From what I can tell Gaara didn't see it directly and he goes on like "is that him" and not "that is him" so I think it is not entirely safe that this is Naruto. That's just my impression though. Itachi's idea of how to stop the Edo's might have something to do with Rasengan, who knows? Of course, besides Naruto only Konohamaru use Rasengan much as some kind of (annoying, I'm so sick of seeing Rasengan over and over again) signature move but just an idea.