That Jutsu

[itachi1000]

When Jiraya and Gerotora mentioned that Naruto had not completed "that jutsu", exactly what jutsu where they talking about? This is something that has been bothering me for awhile and I just want to know have we already seen this jutsu or is it something completely new that Naruto is going to show in his fight against the Juubi?

 

[rollin]

i think it has something to do with his seal and the yang chakra naruto got from the kyuubi
the first time he got some of the kyuubi's yang chakra his seal resembled the rikudo
and when he became friends with kurama and kurama gave him more yang chakra his seal resembled the rikudo's even more