Sasuke's new "appendages" are totally gay. Are they wings or are they mutated fish fins? Nobody knows...

And to whoever asked why Naruto used the regular chakra for rasengan: rasengan requires tremendous chakra control, and since the kyuubi chakra was in berserk mode, he couldn't really control that. It's one thing to have something, and another to be able to use it.

And no, chidori and rasengan are NOT the same technique. Chidori is a ninjutsu with hand seals, while rasengan is just chakra manipulation. It was still a stale mate at the end, and Naruto only went unconscious because he stayed in kyuubi mode for too long, not because he got hit with chidori.