Good games that not so much people know...
Magical taluluto adventure
Street racer (ok ok, this game is well known, but no one seems to talk about it, and is superb!! one of the best racing games on the megadrive/genesis)
Alisia Dragoon
Bubble and squeek (not so good, but fun, amiga like plataformer)
Phantasy star 4
Chuck rock 2 (if i remember well, is graphically identical to the amiga version)
B.O.B (fun plataformer, but too long)
Arrow Flash (shooter)
Galaxy force II
Fun car rally
Mickey mania
Rock n' roll racing
Speedball 2
Gynoug
Nba jam
And more... i will post if i remember more, there are a lot of good games to play on drmd