Moeyo Butaman (燃えよ ぶたマン!?) is a cancelled NES / Famicom game that was in development in 1992 and it would have been published by Sigma Enterprises. Only a couple of (tiny) scans from old japanese gaming magazines remain to remember the existence of this game.
Characters designer for Moeyo Butaman was Gen Sato – a designer / animator who also worked on “Suishou no Dragon” with Squaresoft and on many anime – who seems to have a playable cart of Moeyo Butaman in his personal collection.
We can only hope that one day he could dump the game to preserve it from being lost forever.