If the idea of Raiden as the main character is bothering you or you just do not want to look at him all the time, then good news for you! You can play as Cyborg Ninja (or Gray Fox) in Metal Gear Rising: Revengeance by pre-ordering the game from GameStop. Although it is only a skin rather than a whole different character, it is still an exciting addition.
Having Cyborg Ninja in the game is more like a gentle kiss on the cheek for all the fans of the Metal Gear Saga. The whole idea of Raiden using a sword first started in MGS2 when he encountered “a cyborg ninja” (not to spoil too much). MGR: Revengeance will be out on the 21st of February, 2013.Source: Destructoid