Ikkenhissatsu

Ikkenhissatsu ( 一拳必殺いっけんひっさつ, To Annihilate At One Blow) is a Radiation Release Nintaijutsu and Certain-Kill Technique (必殺術, Hissatsujutsu) utilized by [--].

Overview
[TBD]

Trivia

 * is a term used in traditional and conveys the spirit that the karateka must partake in.
 * This technique was inspired by the Infinite MAss Punch used by the Flash in DC Comics.