Scrolling GIF. NES displayable graphics. While the top (with the moon) is a scroll-split, a few of the lowest stars are sprites to make it seem as if the two strips of background are overlapping. (There are no background layers on the NES. This is one way to overcome that. )
@FrankenGraphics As a fellow game dev as well, I hope Project Borscht goes well! As it is, going back over your posts is massively inspiring me to work on Castle Titania <3