AU. In battling and defeating Kyuubi No Kitsune, the sealing jutsu unexpectedly sealed away Yondaime Hokage into Naruto. What will life for Naruto be like now that Yondaime is sealed away into him?

Harry Potter won the Second Blood War and defeated his enemies... and was left with nothing. Decades later, he contributes to the creation of a revolutionary new piece of technology and destroys the future in order to rewrite his own past...

Naruto finds he is flung back in time and must repeat the entire Chunin exam over and over and over, until he gets it right and possibly saves Konoha in the bargain.

You'd think being brought up by his Sannin mother instead of as an outcast would make Naruto's life a little easier. Not so for a guy with a demon trapped in his belly, even if he's genetically predisposed to handling it. Mokuton!Naruto

Naruto is forced to use a jutsu by the Kyuubi to send him back in time. Now, in an altered 13 year old body, and the knowledge of his future and his arsenal of jutsu at his disposal, what will he change? Narusakuino. Mature, just in case.