The Ninjutsu of the Fourth Hokage, Namikaze Minato. The name of this Ninjutsu is called Flying Thunder God. This Flying Thunder God was originally created by the Second-generation Hokage, which means that it was the original Second-generation Hokage of Senju Tobirama. After this ninjutsu was created, this number of people was classified as a forbidden technique because this number of people would consume a lot of chakra