Konami’s Metal Gear games are widely admired for their consistently incredible graphics and genre-defining stealth action gameplay—neither of which have officially appeared on the Mac for years. So TransGaming’s release of Metal Gear Rising - Revengeance ($30) is noteworthy for its very existence as a Mac game: originally a PlayStation 3 and Xbox 360 title, this side story stars the increasingly popular cyborg ninja Raiden, whose…