Kusarigama

The kusarigama is Michelangelo's wepon of choice in the 2012 TV series. It has a blade on the end unlike the old nunchucks. Instead of having another balde at the back like the nunchucks it has a handle as well as the handle atached to the blade itself. The nunchucks are one of the wepons replaced ( the other being the bo staff )

Tiger of the West uses a Kusari-Gama called the "Great Wind" in Teenage Mutant Ninja Turtles & Other Strangeness.

Picasso and Nobutada Itsu use Kusari-Gamas in Teenage Mutant Ninja Turtles Adventures!.

Karai uses one in the 2003 TV series episode Scion of the Shredder.

In the Tales of TMNT vol. 2 #5 "Blind Faith" a Foot Elite uses one on Leonardo.

In issue #10 of the IDW series, Splinter fights a Large Foot Ninja welding a Kusarigama.

In Teenage Mutant Ninja Turtles: Turtles in Time some of the orange Foot Soldiers are armed with kusarigamas.