Very nice work! I'm looking forward to giving this one a go, it's been a while since I beat Simon's Quest so I'll dig out my NES and play it until this gets released!
Just a quick question/suggestion though, how difficult would it be to add extra costumes to Simon if you were to retro-add it? I think having a couple of different costumes would be a nice bit of fanservice, I'd love to use the Chronicles Simon, and somewhere out there is a Richter sprite edit that ha been edited to resemble Simon from Chronicles as well.