Jankenman (ジャンケンマン) is a children's anime series that ran from April 4, 1991 to March 26, 1992. 51 episodes have been aired.
There is a small village called Janken Town. The hero Jankenman protects the village and defeats his adversaries by playing games of rock-paper-scissors with them. Meanwhile, the villain Osodashi Mask always tries to deceive others.