Arrghus is the guardian of the second Crystal in the Swamp Palace in both The Legend of Zelda: A Link to the Past and The Legend of Zelda: A Link Between Worlds and the Eastern Temple in The Legend of Zelda: Four Swords Adventures. Arrghus is a mini-boss as well, known by its japanese name Wart, in the Great Bay Temple and the Secret Shrine in The Legend of Zelda: Majora's Mask.