Shuriken (手里剣; "hand hidden blade") is a traditional Japanese weapon that is generally used to be thrown into the opponent, and sometimes used to stab and cut the artery opponent. Shuriken made from needles, knives, and other metal materials. Shuriken is the weapon most often used after a katana and naginata. Martial science that uses shuriken-jutsu is called Shuriken, Shuriken-jutsu taught at the university once the ninja. Shuriken known as "Ninja Star"
