Board Thread:Naruto Discussions/@comment-1926479-20140528055515/@comment-24282510-20140529210904

DrewAE wrote: I'm surprised nobody has mentioned "that jutsu". For those who don't know what i'm talking about, when Naruto get the key to the Kyuubi's Cage. It was said that it allowed him to use "that jutsu". That jutsu has not been used yet and has not even been named. It could be something forgotten by Kishi or something he is planning to use for the end.

The only mention of "that jutsu" i recall is when he was in training for sage mode and was the Wind Release: Rasenshuriken.