Crap! Someone's already mentioned Shadowrun!
Anyhoo, that's a BIG recommendation. It's my favourite game of all time at the moment, too. Lots of depth, interesting characters and very engaging. A must! Also, give these a try:
Gradius 3
Plok
Earthbound (not cheap on ebay - trust me, I've looked! :nuts
Super Mario RPG: Legend Of The Seven Stars (see above)
Mystic Quest: Legend
Vortex (not a million miles from Starwing; an overlooked little gem)
ISS Deluxe (best soccer game EVER!!!)
And you know all the rest: Super Mario World/All-Stars/Kart, Super Metriod, Zelda: A Link To The Past, yadda yadda......
Clayfighter 64 GOOD?!?!?!?!? What frickin' game were you playing?! :weird: