Zelda II.
The fair way, on my actual NES, no guides or other help from the internet. Figured everything out for myself. Just me and my golden cartridge. Sucks that in this day and age of let's-plays, walkthroughs and emulators or virtual consoles with save-states I'll have to put in this disclaimer for this to be in any way impressive. I had a Game-Over (three loves, plus extra ones you'll occasionally find) 126 times! 







