Pirogusus are enemies from The Legend of Zelda: A Link to the Past. They appear only in the Swamp Palace, the second dungeon in the Dark World. Pirogusus are small, fish-like creatures that appear in pipe holes on the walls, dropping down to the shallow water below to attack Link. They swim around in an infinite sequence unless they are defeated by Link. Pipes periodically spew new Pirogusus out until Link exits the room.