A circular arena with a myriad of weapons strewn throughout its area. With no mechanical or environmental hazards, this arena instead provides ample weaponry and ammunition to competitors who fight in it. While occupying this arena, C-rank catalog weapons of any Weapon Style are always considered within reach, as are E-rank shuriken, senbon, and kunai projectiles also matching those found in the weapon catalog, though contestants are limited to the use of one such weapon, or three such projectiles per post.