The flashback is mostly a giant infodump of how much he got better with his "transcedence" and how (in the retarded ways he got on the chapters of Chaos Mage LH didn't MST yet) but had some trouble adapting, then a scene of him getting handjobs and blowjobs from his mom dressed as a nurse (that they don't see each other as mother and son anymore, but think may love), then flashback over... and more infodump of his training to control his superstrength that is much better than the others so he makes a new fighting style for himself called, no joke, Konton Ryu-Ryu Ryu. There's a translation, Chaos Dragon Flow Style... that still sound retarded, but... Ryu-Ryu Ryu! And you just know that this is how he will call it the most...
Oh, but everything but physical strength is still the same. Naruto is disappointed that he isn't even more overpowered because he is afraid of fighting DarkNaruto.
Then another flashback. This one starts more interesting, it seems to be him suffering extreme pain from the transformation and trying to disconnect himself from the pain.
Then it mentions how he has knowledge in every field and absorved the memories of Orochimaru, Kisame and Zetsu. Probably the last part will make more sense when LH reaches it, but doubt it'll sound any less retarded or just to overpower him more.
Then he shocks his spine senseless and goes to his mindscape... which is being eaten by a sharinrinnegan moon. Which he then defeats in less than ten seconds and makes an oh-so-impressive (not really) sealing on it, trying to lock it into the old Kyuubi cage or something.
Then Minato appears. God knows how long after Kyuubi was fred. No real explanation, just to make Naruto confront "the bastard who sacrificed him to make a malleable weapon for konoha" as he says. Then Minato turns into a Danzo-clone and starts talking about making an army of jinchuurikis for Konoha. Then Naruto defeats the Yellow Flash in less than five seconds.
I am currently wishing I wasn't reading this. He could at least tried to make these things entertaining... This is not just stupid, it's also boring.
Then DarkNaruto finally appears. Since we know that even this overpowered Naruto fears it it could be entertaining... then hopes are dashed when Naruto calls him fucking "Yin" and DN replis by calling him "Yang". I don't know if I complain that calling it "Id" like in Xenoguears and not having give Naruto a stupid name would have been much better, or if I hope there is even a small chance of there being a panda called Yoh there with them.
Then Naruto seals DN with no hint of an awesome battle besides some lame banter from DN. Using DN makes me want to search for DarkWing Duck on youtube.
Yes, I'm stalling before continuing reading, can you blame me?
Then finaly the flashback is over. And this time continuing the story. Only about more than half the chapter of 13000 words.