 Kratos retains his main weapon of the previous installments , the Blades of Athena : a pair of blades attached to chains that are wrapped around the character 's wrists and forearms . In gameplay , the blades can be swung offensively in various maneuvers . Kratos utilizes the magical abilities Medusa 's Gaze and Army of Hades acquired in the original God of War , as well as the secondary weapon , the Blade of Artemis , with each offering alternative combat options , giving him a variety of ways to attack and kill enemies ( e.g. , Medusa 's Gaze briefly turns enemies to stone ) . Foes encountered in Betrayal primarily stem from Greek mythology , including Gorgons , minotaurs , and cerberuses , as well as those created for the game , such as the humanoid minions of the god Hades , including dead riders and undead legionnaires . In addition to the main gameplay , Betrayal includes a bonus " Arena Mode " where players must kill a certain number of enemies without dying before gaining access to the Arena 's upper levels . 
