What Is Ninjutsu?

The Hidden Door School: This multifaceted school is one of the older lineages, and features multiple aspects of the following schools with the addition of specialized tools.

Jeweled Tiger School: Related to Koto Ryu, this school added joint locks and throws of greater variety alongside circular attacks and koshijutsu (organ/pressure point attack techniques.) The Kihon Happo (8 Fundamentals), a mainstay of modern ninjutsu, is mostly derived from this school.

 Nine Demon School: Considered a weaponry-oriented school, its origins remain mysterious. It can also be known as Happo Biken Jutsu, or the "Secret Sword" school.

Truth, Loyalty, & Justice School: This school was passed on primarily through oral tradition and is considered a school with elusive origins. Some kyusho (pressure points) and specialized footwork come from this tradition.

High Tree, Raised Heart School: Popularly known in the ninjutsu community as "The Bodyguard School" this school was developed over decades of influence from other ninjutsu schools and features a variety of throwing and grappling techniques.

Tiger Knocking Down School: This lineage developed primarily as  a bone-breaking striking art that specialized in powerful, linear, direct attacks. It is closely related to its "sister school" Gyokko Ryu. These martial arts are broad and powerful.

Immoveable Heart School: This was heavily influenced by chinese boxing and primarily taught striking techniques while additionally featuring locks, throws, and stances (kamae). 

Jeweled Heart School: This school features a lot of similarities with Gyokko Ryu and focused on free movement and espionage.

Hidden In the Clouds School: A sister school to Togakure Ryu, this school features specialized weapons training and techniques that served contextual needs during the feudal era.