Emulation: NES Emulators for the PC are widely available. The best, so far as I can tell, is the charmingly named NESticle (by Bloodlust Software, the people who brought you Genecyst and Callus). This runs well under Windows '95 (native version included), and equally well under DOS. It allows you to save & load positions in games, offering a huge advantage to the gamesplayer. Both Star Wars games are available for NESticle, as are many others.