Snow Bros
Wardner
Lemmings
Mega Turrican
the Humans
Road Rash 3
Ristar
Rocket Knight
Twin Hawk
Pulseman has really good graphics, haven't played it extensively. Same wtih Vectorman
The Treasure stuff has kind of bad gameplay but really good graphics and sound, fun ones to fuck around with. There's a lot of stuff like that on Genesis, games that aren't that great but I enjoy checking out once in awhile, like Maximum Carnage or F-15 Strike Eagle II