What is "kusarigamajutsu"

is the art of using the Japanese weapon kusarigama.

Kusarigamajutsu is featured in several separate martial arts such as Koga Ha Kurokawa Ryū Heiho Ninjutsu, Suio 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.