Stone Arrghus is the boss of the Eastern Temple in Four Swords Adventures. The boss is a large stone eye surrounded by smaller boulders. The Links must use the Boomerang to remove the smaller boulders from Stone Arrghus and destroy them with the Four Sword. Once all of the boulders have been destroyed, the large eye will engage the Links. After the eye has been slashed enough, Stone Arrghus will be defeated, yielding many Force Gems and allowing the Links to continue to the Yellow Maiden.