Akumajo Densetsu by a land slide...(CV3)
but Super Mario Bros. 3 as well
Ninja Gaiden I thought pushed the limit, to have an excellent storyline, cut scenes like a movie...
SNES.
Stunt Race FX, Star Fox, Chrono Trigger (Look at those colors!), DOOM...I still dunno how they did that..F-Zero's usage of the Mode 7 graphics