Sega Saturn Cheats - Samurai Shodown 4: Amakusa's Revenge (Also Known as "Samurai Spirits 4")

Fight as Zankuro:

Select a versus or practice mode game. Press A + Y at the character selection screen. Zankuru will appear as a selectable character in the center of the screen. Alternatively, highlight any fighter at the character selection screen, hold Y, hold Z, then press C.