Sure, I'll give it a shot. I just have a few questions:

If a game has multiple paths or difficulty settings, do we have to beat them on all of the settings, or only the hardest setting, or can we pick any setting we want? If I chose Star Fox, for example, would I have to beat all three paths, or just the third path, or could I just beat Path 1 and count it?

Also, I think I understand what you mean by save files, but suppose I start Super Mario World, and then have to save & quit for some reason, can I start again later, beat it, and count that? Or do I have to beat the whole thing without saving?

Are continue codes allowed? (Like, for example, ABBA to continue in Ikari Warriors after you lose your last life.)