Kushuriken

The Kushuriken (空手裏剣) or Air Shuriken is a Ninku technique primarily used by the 1st division Ninku warriors in the Ninku series.

Like the Fuatsken, it is often used by Fuusuke and is also named the Air Stinger Attack in the english movie dub.

Overview
The Kushuriken technique lets the user cut through object almost like a sword and is stated to be several times sharper than an ordinary shuriken. The user preforms quick hand gestures similar to the Kuatsken. after formation, wind gathers around the users hands and acts as makeshift blades that can cut through metal and rock. At one point, Fuusuke used the move to cut through Command Armor soldier's black armor with an extremely high density.

Kushuriken can also be thrown as double projectiles.