Hasshoken

Hasshoken is a martial art used by the Chinjao Family.

Description
As stated by Gatz, this fighting style allows the user to control vibrations around their limbs to generate shock. This shock is powerful enough to destroy a metal shield or defeat a strong man easily. Sai also claimed that these attacks are unblockable and reverberating, causing defenses to shatter.

Variations
This fighting style can be utilized on every limb of user's body, whether it be fists, legs, or elbows. It was shown different variants of this fighting style but all of them are unnamed.

Trivia

 * The ability to generate and control vibrations is similar to the Gura Gura no Mi.
 * This fighting style is only used by Chinjao Family which are also members of the Happo Navy, and may thus be a secret family or special army technique.