The Kusari-Gama (鎖鎌 Kusari Gama?, Chain Sickle) is a Ninja weapon consisting of a long chain with a sickle on one end and a heavy weight on the other, it is one of Ryu Hayabusa's available weapons in Ninja Gaiden II, Ninja Gaiden Sigma 2, and Ninja Gaiden 3: Razor's Edge. Its origin is said to have come from innovative peasant ninjas, whom were disallowed to own weapons developed the Kusarigama from farming tools such as the sickle and chain.