Mash Man is game #37 out of 52 from Action 52, a $200 unlicensed multicart made for the NES. You play as some hairless bigfoot dude with a big nose and sunglasses, and as with every other platforming game from Action 52, the goal is to get to the end of each level. In every level are enemies that either appear to be made out of abstract shapes or are some variety of eye monster. They randomly either can or can't be killed, and/or they can or can't harm you.

LoganTheTASer here shuffles with hairless Mash Man bigfoot guy through all three levels in record time.