A lot of cats don't realize that Japanese Martial Arts has always been a thing long before Okinawan Karate came to Mainland Japan and long before Judo and Aikido were created. The perfect example of this is the Ancient Martial Arts of the Samurai known as Koryū (Ko-Ryū) (古武道).
Shurikenjutsu (手裏剣術) The Art Of Shuriken And Throwing Weapons.