The oft mentioned somewhat ominous reference of "that jutsu." "That jutsu"was being developed by Minato and Jiraiya and Jiraiya taught it to Naruto. It's an incomplete jutsu that Naruto believes having control of the 9 tails will allow to use. To my knowledge it's been mentioned 3 times.
-First when Naruto was going to save the Kazekage Gaara, Jiraiya told him not to use "that jutsu."
-It was next mentioned by Gematora (the key toad) before Jiraiya fought Pain. Gemtora questioned Jiraiya saying does Naruto even need that jutsu.
-The last mention was when Naruto received Gematora.
So my theory on "that jutsu" is that it's a sealing rasengan. Minato likely using the advanced Uzumaki sealing jutsu's was attempting to merge the sealing jutsu with the rasengan to create an eternal seal somewhat similar to Itachi's Susannoo's sword. "That jutsu" will likely only be used once or twice and will defeat Madara in the end.
Anyone with a thought on what "that jutsu" is please comment.
-First when Naruto was going to save the Kazekage Gaara, Jiraiya told him not to use "that jutsu."
-It was next mentioned by Gematora (the key toad) before Jiraiya fought Pain. Gemtora questioned Jiraiya saying does Naruto even need that jutsu.
-The last mention was when Naruto received Gematora.
So my theory on "that jutsu" is that it's a sealing rasengan. Minato likely using the advanced Uzumaki sealing jutsu's was attempting to merge the sealing jutsu with the rasengan to create an eternal seal somewhat similar to Itachi's Susannoo's sword. "That jutsu" will likely only be used once or twice and will defeat Madara in the end.
Anyone with a thought on what "that jutsu" is please comment.