Hakuda (白打, "Hand-to-Hand Combat"; lit. white hits) is the general term for close-combat techniques that make use of one's own body as a weapon. High-speed Taijutsu (体術, Body Skill) attacks are used to overwhelm the opponent.[1] Physical strength and skill is determined by this class. It also seems to be a combination of several
Techniques
Yamamoto using Ikkotsu
Added by Tinni■Ikkotsu (一骨, "Single Bone"): A powerful punch used by Yamamoto against Wonderweiss. Using this technique, Yamamoto was able to destroy much of Wonderweiss' abdomen and sending him flying along a city street and into a building, destroying it.
Yamamoto using Sokotsu
Added by Tinni■Sōkotsu (双骨, "Double Bone"): Stronger than Ikkotsu, it is a powerful two-fisted punch used by Yamamoto against Wonderweiss. The attack in one blow can totally destroy an opponent.