With shuriken jutsu, the usage of throwing spikes, the smallest weapon of the arsenal of Tenshinsho-den Katori Shinto Ryu is taught.
There are many different kind of shuriken, star shaped with 8 or 6 tips, cross shaped with 4 tips and oblong in various lengths.
De shuriken of Tenshinsho-den Katori Shinto Ryu is approximately 7 inches (18 centimetres) long with a sharp tip.
The shuriken were also named “the sword of desperation”.
For example when a samurai’s sword broke during battle, shuriken were thrown at the enemy to hurt or scare the enemy, after which the samurai struck his enemy with his kodachi. Shuriken are not intended to kill the opponent.
Shuriken are thrown forward in 3 different ways, from above, from below, and from the left shoulder. The shuriken is thrown in combination with a forward step.
Throw and body should form one single movement. The kata are preformed from a walking position (Tachi uchi) and a kneeling position (Za uchi).
There are 7 basic kata (Omote no Shuriken), 8 advanced techniques (Gogyo no shuriken) and 9 secret techniques (Gokui no shuriken).