Kobudo means .Ancient Martial Way. which is the art of traditional weapons training. The bo, sai, tonfa, nunchaku and boken are just some of the weapons that the students will learn. Kobudo is a separate art from Karate. Kobudo training broadens and compliments a student.s karate skills. The JKI Kobudo Weapons Program is a combination of Okinawan and Japanese weapon systems. Through study, training, and application a student can obtain the rank of Shodan in approximately three years.