The Challenge of the Gods is a series of 10 stages, or tests, in God of War. They become available after the game is beaten for the first time. By beating these 10 challenges the player can unlock Bonus Costumes. This feature in the game is very similar to the Challenge of the Titans in God of War II and the Challenge of Hades in God of War: Chains of Olympus. The Challenge of the Gods returns in God of War: Ghost of Sparta and has its challenges divided between Ares and Athena, with Ares providing five and Athena eight. The Athena Challenges, however, are only available once purchased from the Temple of Zeus.