Hasshoken

Hasshoken is a martial art used by the Chinjao Family.

Description
As stated by Gatz, this fighting style allows to user control vibrations around their fists or kicks to generate shock by unknown reasons. This shock is powerful enough to destroy a metal shield or defeat a strong man easily.

This fighting style is only used by Chinjao Family which are also members of Happo Navy, and may thusly be a secret family or special army technique.

Trivia

 * Ability of generate and control vibrations is the same ability of Gura Gura no Mi.