And how about Star Wars and Empire Strikes Back for the NES? Without save points or any kind of a code system, those games were way too long. I remember playing through the Hoth levels of ESB countless times, but I rarely made it beyond that before I got tired of playing.
I spent so many hours in both of those games on the NES, and I am not sure if I ever beat either one. I ought to grab the roms from somewhere, load them on my DS, and tackle them with save states. I actually have a much closer connection with NES Star Wars games than the Super Star Wars games, though how well done the Super trilogy was cannot be ignored. The soundtrack alone made them worth playing.