Fish-Man Karate Ogi: Onigawara Seiken (魚人空手「奥義」鬼瓦正拳, Gyojin Karate Ōgi: Onigawara Seiken?, literally meaning "Fish-Man Karate Secret Technique: Onigawara True Fist"): Jinbe delivers a powerful straight punch similar to his other seiken, but used with the Hardening technique and without connecting to its real target. It is able to generate a powerful black lightning charged shockwave. It was first used to defeat Who's-Who