Ninja Spirit, known in Japan as , is a 1988 platform game developed and released in arcades by Irem. Although praised by gamers for detailed graphics, serious themes, solid controls and gameplay, the game also was criticized for its harsh difficulty. Gameplay Tsukikage's journey takes him through seven stages, varying from woodlands, wastelands, swamps, temples, and cliffs. Each stage begins with the player slashing their way to the end until they confront a level boss. The ninja is always armed with the katana named Muramasa (meaning Righteous Cloud), which can be fluidly used to attack in all directions. Extra weapons include the Uzha (meaning Swirling Leaf) (shurikens), the Raitake (meaning Bamboo Thunder) bombs, and the Shoryusai (meaning Rising Dragon) kusarigama. There are also several power-up items, such as one unleashing multiple ninja ghosts to assist the player. Plot The game's hero, , is a young ninja who lost his father to a mysterious half-man half-beast creature. The plot of Ninja Spirit is based on the quest of his way to avenge his father in an alternative feudal Japan. Ports The game was successfully ported onto multiple platforms. The most popular port is the TurboGrafx-16 format which includes two modes: the PC Engine mode which players lose one life only if all 5 energy points are used up (certain enemies can kill Tsukikage with one hit), and the Arcade mode, which is a more challenging mode where any attack are grounds for players to lose one ninja instantly. That version was ported to the Nintendo Wii's Virtual Console on 14 May 2007, was delisted on 30 March 2012 and was available again on 17 September 2013 in Japan and on 19 September 2013 in North America and Europe. The same version was re-released on the Nintendo Wii U's Virtual Console on 14 January 2015 in Japan, 27 July 2017 in North America and 10 August 2017 in Europe. Soundtrack The original soundtrack for the game was released on December 21, 1988 by Alfa Records. Reception In Japan, Game Machine listed Ninja Spirit on their September 1, 1988 issue as being the fifth most-successful table arcade unit of the month, outperforming titles like The Main Event. In Issue 15 of Electronic Gaming Monthly, both Ninja Spirit and Ys Book I & II were the first games to receive a perfect 10 in the magazine's history. In 2010, CraveOnline featured this version in