Sonic the HedgeHog
SUper Mario Bros. (gotta have thta cause its just a classic!)
R-Type (BEST shooter for TG-16!)
Street Fighter II (Another classic MUST have)
Mario 64
I could do without all the other VC games right now, i'd like to see what else comes out.
Castlevania 4, and Bonk are fun with high replay value. It won't take long to win either, but you'll get your money's worth with both. Hold out for Mario Kart 64, and Final Fantasy 1-6 if you want something that will take longer to win.
Games that are fun and forgotten, Shadow Gate, Deja Vu, Faxanadu, Rampart, Cadash, Ogre Battle Snes, and N64 versions.