<P> 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 . </P> <P> As with the previous games in the God of War franchise, God of War: Betrayal is set in an alternate version of ancient Greece, populated by the Olympian Gods and other beings of Greek mythology . Events are set between those of the games Ghost of Sparta (2010) and God of War II (2007). The protagonist is Kratos, a former Captain of Sparta's army who became the new God of War after killing his predecessor, Ares, the previous God of War . Other characters include Argos, the giant pet of the goddess Hera; an unknown assassin; and the Olympian messenger Ceryx, the son of Hermes and main antagonist . Zeus, the King of the Gods, is an unseen character . </P> <P> Kratos is leading the Spartan army in a rampage across Greece . During the campaign, he is attacked by a number of beasts led by Argos, who was sent by the gods to stop Kratos . After a series of skirmishes, Argos is killed by an unknown assassin, who frames Kratos in an attempt to turn the gods against him . The Spartan pursues his foe across Greece to discover the identity of the assassin, but is slowed by constant attacks from the minions of Hades, the God of the Underworld . Zeus sends Ceryx to deliver a message to Kratos: stop the relentless pursuit and take heed of the destruction already caused . Kratos, however, battles and kills Ceryx, which inadvertently allows the assassin to escape . Kratos then realizes his actions have further alienated the gods, and Zeus will soon act in response to his defiance . </P> <P> God of War: Betrayal was announced by Sony Online Entertainment at a press conference in Los Angeles in May 2007 . The game utilizes a total of 110 different animations and features a 2D rendition of the series' three dimensional (3D) graphics . The character art and animation were done by WayForward Technologies . The only audio components are an orchestral score in the main menu and background sounds (e.g., clashing weapons). In August 2007, Phil Cohen, producer, designer, and game director for Betrayal, spoke of the difficulties in developing a God of War game for a mobile device . Cohen said that although enjoyable, the greatest challenge was creating a single tileset and palette swapping scheme that was diverse enough to portray multiple environments with only several hundred kilobytes, and that met series creator Santa Monica Studio's high standards . He wrote the initial design document between September and October 2005, and revisited it in August 2006, the month development started . The versions for high - end handsets were completed in April 2007, with final versions for low - end handsets completed by June 2007 . The porting team adapted the game to over 200 handsets in a matter of weeks . </P>

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