Kung-Fu Master, known as in Japan, is a side-scrolling beat 'em up game developed by Irem as an arcade game in 1984, and distributed by Data East in North America. Designed by Takashi Nishiyama, the game was based on Hong Kong martial arts films. It is a sequel to the Jackie Chan and Sammo Hung film Wheels on Meals (1984), called Spartan X in Japan, with the protagonist Thomas named after Jackie Chan's character in the film. The game is also heavily inspired by the Bruce Lee film Game of Death (1972), which was the basis for the game's concept. Nishiyama, who had previously designed the side-scrolling shooter Moon Patrol (1982), combined fighting elements with a shoot 'em up gameplay rhythm. Irem and Data East exported the game to the West without the Spartan X license. The player controls Thomas, the titular Kung-Fu Master, as he fights his way through the five levels of the Devil's Temple to rescue his girlfriend Sylvia from the crime boss Mr. X. As he ascends the tower, he has to fight many enemies along the way and five end-of-level boss battles, a concept inspired by Game of Death. Thomas and each boss have a health meter, and the game temporarily becomes a one-on-one fighting game during boss battles. The game was a major commercial success, topping the Japanese arcade charts and becoming America's second highest-grossing arcade game of 1985, while receiving critical acclaim for its fast-paced, side-scrolling gameplay and detailed, colorful graphics. A port for the Nintendo Entertainment System (known as the Famicom in Japan) was developed by Nintendo under the direction of Shigeru Miyamoto, released as Spartan X in Japan and Kung-Fu in the West, selling copies worldwide. It was also one of the top five best-selling Commodore 64 games of 1986. It spawned the sequel Spartan X 2 (1991) and the spiritual successors Trojan (1986) and Vigilante (1988). Kung-Fu Master was an influential game that had a significant cultural impact. It is regarded as the first beat 'em up brawler, and an early example of the side-scrolling character action game genre, which became popular during the mid-to-late 1980s. Miyamoto's work on the NES port inspired his development of the side-scrolling platform game Super Mario Bros. (1985), while Nishiyama was hired by Capcom where he used the game's boss battles as the basis for the fighting game Street Fighter (1987), before working for