Comparison of karate styles it comes to individual karate styles; Shotokan involves long, deep stances and powerful long range techniques. Shito-ryu, on the other hand, uses more upright stances and stresses speed rather than power in its long and middle range techniques. Wado-ryu too employs shorter, more natural stances and the style is characterised by the emphasis on body shifting to avoid attacks. Kyokushin, a hard style, involves breaking more often than the other styles and full contact, knockdown sparring as a main part of its training. Goju-ryu places emphasis on Sanchin kata and its rooted Sanchin stance, and it features grappling and close-range
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