Muichiro: got stabbed in the shoulder pinned onto a pillar by his own katana

Genya: aiming his nichirin gun at uppermoon 1

Kokushibo: slices genya in half and cuts his arms in half also

(Btw genya can eat demon parts and regenerate and sanemi(genya’s older bro) and Gyomei(strongest hashira) will come and help fight!)