i would agree with the punch-theory, i don't see anything like a jutsu. It seems that it's just a punch with incredibly high power... don't forget that he's in sage mode, so his physical power is highly increased. Haha naruto rocks!^^ can't wait for the next chapter to see him fighting against pein... but i think he'll have to face nagato himself with the full strength of the rinnegan, cuz i don't believe that it could be a long fight between the controlled bodies and naruto, cuz he took one of them out like nothing... and the others aren't so much better

the fight of the year will be naruto vs. nagato (alone) and konan will wait hidden in the forest until she realises that pein got his ass kicked by naruto, then she'll help him^^ the end of the fight is probably chapter 445 or something like that ^^
p.s. sorry for mistakes and that likes...

still learning the language

aah AND:
great community here, happy about being here with y'all =)