A 89 version would indeed be nice, although I wonder if in BASIC it would be fast enough? Does BASIC allow decent scrolling?
Yes I know it would be hard. I first though I could do it, but then I saw that greyscale sprites are just too pretty, so I would use Newprog.
BUT, I have decided to not start on that. I've gotten something else in mind. But that's still a secret.(Not that I wouldn't really care if you knew what it was, just that it's still only in planning stages