Kusarigamajutsu

 is the art of using the Japanese weapon kusarigama. 
Kusarigamajutsu is featured in several separate martial arts such as Tendō-ryū, Suiō-ryū and Shintō Musō-ryū. The kusarigama is made up of three parts: the "kama" (a wooden handle with a curved blade (traditionally straight) protruding at a right-angle on one end, and a small loop at the other), and the "kusari" (a chain attached to the kama) and a weight at the end of the chain. In a confrontation the kusari is swung in wide sweeping arcs to distract and entangle the opponent and the kama is used to deliver a fatal strike.