Kenkojuku Kenkojuku Kenkojuku is a style of Shotokan karate previous to the establishment of the Japan Karate Association (JKA) style. It was founded by Tomosaburo Okano. Kenkojuku karate is similar to the teachings of Gichin Funakoshi and modifications made by Funakoshi´s son Yoshitaka Funakoshi. JKA Shotokan differs slightly in that it was Masatoshi Nakayama's version of Shotokan. Okano's/Yoshitaka's Kenkojuku karate and JKA karate are becoming more similar compared to other variants of Shotokan karate such as Shigeru Egami's Shotokai, Hirokazu Kanazawa's Shotokan Karate International or SKI. Since the style is more biomechanically sound and self-defense oriented, there are notable differences in
Ryu Hayabusa a "Bio-Noid", created by Irene's superior and corrupt CIA director, Foster. After Ryu defeats the double, Foster is killed by H.P. Clancy, who had instructed Ryu to locate a ruin called the "Castle Rock Fortress", which was the base of Foster's Bio-Noid experimentation and has also secretly housed an interdimensional warship that Clancy intends to use for global dominance. Ryu kills Clancy in battle and the ship is destroyed as Ryu escapes with Irene, bringing the first-generation "Ninja Gaiden" storyline to a close. The 1992 Sega Master System version of "Ninja Gaiden" scraps the entire narrative of the original series