Muramasa: The Demon Blade is a 2009 action role-playing game developed by Vanillaware and published for the Wii by Marvelous Entertainment (Japan), Ignition Entertainment, and Rising Star Games (Europe). Set in the Edo period during the reign of shogun Tokugawa Tsunayoshi, conflicts have arisen over ownership of the Demon Blades, samurai swords forged by Muramasa Sengo that bring tragedy and madness upon their wielders. The story follows two protagonists related to this conflict: Momohime, a woman who is possessed by the spirit of vengeful rōnin Jinkuro Izuna; and Kisuke, an amnesiac ninja on the run for a forgotten crime who is tied up with the tragedy that destroyed Momohime's family. Using a 2D side-scrolling perspective, the gameplay revolves around a beat 'em up fighting system, while incorporating role-playing elements such as leveling and questing.