If the floor is fully illuminated, then the boss zone is open. If the floor has pelo illumination, then the boss zone is closed. If the floor has partial illumination, then the boss zone will open within 5 minutes. Up to 10 players can be in the boss zone https://persona3reloadgameplay08753.full-design.com/o-que-significa-god-of-darkness-mu-online-78473686