Just to add a few not mentioned:
Vectorman 1 & 2
Dynamite Headdy
Landstalker (A must have in my book)
Global Gladiators
Rocket Knight Adventures
Castle of Illusion
Cool Spot
Sega CD:
Keio Flying Squadron
The Terminator
Shining Force
Mickey Mania
Earthworm Jim 1 & 2
Batman Returns
I still have all of these orginals in my collection too!!!