B.A.T. (aka Battle Android Troopers): BATs were the disposable robot units created by Cobra in the second season of the cartoon G.I. Joe: A Real American Hero. It took Cobra a whole season to invent the robots so that the Joes had something to shoot at and hit. After all, it appeared that both Cobra and G.I. Joe went to the Stormtrooper School of Markmanship.
(Image courtesy of Wikipedia)