When did Naruto learn to do a Rasengan without a clone or nine tails chakra mode the last manga chapter at the end he did it like J-dog and minato? Or has he done it before and I just forgot?
Naruto slammed the
Asura Path in the Pain Arc without a clone and performed an Rasenrengan against the
Animal Path shortly after without a clone in Gamabunta's mouth.
Naruto also used a one handed Rasengan without the need of a clone during his showdown with Kurama in the Manga and Anime.
And further implies this when all of them try to rush down Kurama and then all the clones activate Sage Mode to empower the Rasengan to
Chou-Oodama Rasentarengan.
Naruto also managed to do this with the help of additional chakra to maintain his clone body during his fight against the Edo-Tensei'd Madara when Madara used Mokuton: Jikai Kotan. Naruto replied back using one handed
Oodama Rasengans to stop the forest emergence.
Filler : Naruto also does this in the Kishi-written story
Road to Ninja doing a homage to Minato by doing the one handed Rasengan to the Tobi possessed Menma.
Filler : In the filler Chikara Arc, Naruto uses the incomplete KCM chakra to form an
Tailed-Beast Rasengan with one hand, although he used yin-yang chakra for that, which is a difficult feat to perform, even when Naruto mastered KCM during the war as shown when Naruto tried to perform the
Tailed-Beast Rasengan against the Third Raikage.
This has also been implied by Kurama when Naruto managed to shift the chakra patterns to match the entire Shinobi Alliance as well and managed to do Twin Fully-Sized Rasenshurikens during the War Arc/Ten-Tails Arc.
Edit:
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A further emphasis of Naruto able to do the one handed rasengan is the Ultimate Ninja Storm series.
In one scenario, he kicks the enemy into two naruto clones charging up a rasengan, with the real Naruto making a Rasengan by himself and both hit their enemy.
Another instance is similar to the Asura Path where he ends it with him charging a Rasengan and slamming it down on their opponent.
Another instance again (Non Sage Mode) is Naruto's regular combo (Last Obtainable Naruto) where he has himself and two clones barrage their enemies with the regular rasengan. Implying that they all made it on their own.
And yet another one is when Naruto fights Tobi in UNJS3 where him and his clone rush down Tobi with several hundred Rasengan in the game's climax.
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