2-3 days ...

[narutothegreathokage]

In just 2 to 3 days of war in narutoverse naruto has got stronger and smarter at an exponential rate with tons of epic new rasengan and new jutsu.
He got to fight alongside his dad,second ,first, third.
He got to fight against madara most badass villan of eternity.

And now he also met the sage of six paths.
The techs he got during this time
planetary rasengan
biju dama
mini biju dama
senjutsu enhanced biju dama
chou odama rarenshuriken
tbm
sage tbm
susano tbm
hatred sensory skills
twin rasenshuriken
chakra distribution
great rasengan barrage line
mini rasen shuriken
violent rotating rasengan
and many more...
and now if spoilers are true
yonton rasenshuriken

 

[YONCE]

it feels like it was just yesterday....... our hero is now all grown up..​

 

[Yanks]

And he got 4 power-ups as well

 

[Gunjan]

2-3 days ??? or 2-3 Years ???

 

[Jcub]

It would be nice if he did a little more with the Chakra sharing, even go offensive with it and sort of either some sort of drain or an AOE chakra feedback. Something different.

 

[Princessu Kaaantchan]

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Sums up the series. Naruto and his friends are one big derp.

 

[daybros]

Signs the series is ending- Naruto is out of ideas for variants of rasengan.

But true, he has become something in the blink of an eye.

 

[RedRobin]

Kishi is like I am sure they wont notice. lol

 

[Naruchigoo]

Very true bro! The little bird has left the nest. *sobs of joy*

 

[Cassus]

what's violent rotating rasengan? I don't remember that.

 

[Tobi98]

what's violent rotating rasengan? I don't remember that.

I don't remember either and I didn't find it on the wiki

 

[Angie4568OST]

I hope he gets the sun staff (Shakujo)

 

[SkyGodHorus]

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Sums up the series. Naruto and his friends are one big derp.

I guess that makes you one big derp for sticking with the series then.

 

[Monkeysageof6paths]

It'd hard to believe the war has only started 3 days ago. (In the manga)