Magnadeus is sealed deep within the Aqua Labyrinth, which serves as the game's EX Dungeon, and the player must locate 15 stones scattered on the World Map in order to access the dungeon. There are 25 levels in the dungeon and occasional mini-bosses, usually Barbatos Goetia. Each boss, when defeated, drops a chest containing a powerful weapon. The 25th floor contains Magnadeus, who will then fight the group. Once he has been defeated, Karyl Sheeden will appear and speak to the group.