Chachamaru Boukenki 2 is a cancelled RPG that was in development by Human Entertainment for Famicom/NES. The main character was modeled after a developer at Human that later would appear as referee in a Fire Pro Wrestling for Super Famicom. The bizzare fact about Chachamaru Boukenki 2 is that despite it was never released, the third episode that was planned for Game Boy was actually published. Below you can see what it said to be the only screenshot ever released.
Thanks to GaijinPunch for the help with the japanese language.