The 18 disciplines are:
Seishinteki kyōyō (spiritual refinement)
Taijutsu (unarmed combat)
Kenjutsu (sword techniques)
Bōjutsu (stick and staff techniques)
Sōjutsu (spear techniques)
Naginatajutsu (naginata techniques)
Kusarigamajutsu (kusarigama techniques)
Shurikenjutsu (throwing weapons techniques)
Kayakujutsu (pyrotechnics)
Hensōjutsu (disguise and impersonation)
Shinobi-iri (stealth and entering methods)
Bajutsu (horsemanship)
Sui-ren (water training)
Bōryaku (tactics)
Chōhō (espionage)
Intonjutsu (escaping and concealment)
Tenmon (meteorology)
Chi-mon (geography)