Legend of Hero Tonma

Legend of Hero Tonma (Japanese original title: レジェンド・オブ・ヒーロー・トンマ) is a cancelled action game that was in development in 1990 by Japan System House (formally, Biox) and Irem for the Family Computer and Nintendo Entertainment System. This game is also a port of an arcade game that was released in 1989. Currently, no prototype ROM have been leaked.