My oh my,
so many different points of view

i pretty much liked the following, that were mentioned before:
Zelda (played it through but never found all the hearts)
Super Mario World (got nearly all Levels)
Final Fantasy 2(5) and 3(6) (also played through, but the one with cecil was best)
Chrono Trigger (dont you ever curse this game cause its really great, seen most of the endings)
Super Probotector (yeah that was fun, especially for two people)
Starwing (fox) (Slippy !!!! not again

)
Street Fighter II (first and only Beat em up i liked and played to the end)
Rock´n roll racing (nearly forgot this one ,too much fun, too good music )
as for others i liked
Top Gear (that was fun)
Bomberman (how could you forget that ?)
R-Type (that was really good music)
Ogre Battle (played it once to the end, ended as bad guy :'( but best strategic game i think)
Castlevania IV (another one u missed, the music and graphics were totally awsome

)
Secret of Mana (man, never forget hat you could play it with friends, but too much level up fighting)
Mario Kart ( what a heck of a game took me a long time, will never forget the music

)
Mystical Ninja (dont know the japanese name and if it was mentioned before, great fun though)
maybe later more, im just traveling through my past

peace