Ryu (Street Fighter) the development team, was meant to let viewers know he was "a karate master at first sight". In an interview with "Game On!", Capcom Research and Development head Noritaka Funamizu stated that of the series' characters, Ryu was one of the most popular characters with American audiences, alongside Zangief and Guile. For "Street Fighter IV", Kyle Hebert was cast as Ryu in preparation of the return of his "Evil Ryu" persona. In an interview with Gamereactor, Ansah talked about Ryu and Ken's story from "Street Fighter: Assassin's Fist" and said "a good analogy with Ryu is that he's not actually
Kyushin Ryu written differently in Japanese to give alternate meanings. Furthermore, other schools that originated from, or have a link to the Japanese island of Kyūshū have been known to use Kyushin in the name. The name "Kyushin (Ichi) Ryu" may be broken into syllables: Note: the no-longer used combination of "Ichi-Ryu" referred to the aristocratic class of society who practiced Kyushin Ryu Jujutsu, rather than implying the school was more "superior" than any other. The older members of Japanese aristocracy were attracted to the ease of application of the lethal Kyushin Ryu techniques. Many "shōguns" realised that Atemi waza would provide