Using ZX Spectrum palette.
Nice hand, great work
WHEW, this looks super slick - I know it's just 16 frames but it feels so much more complicated than that.
How long did it take you to do the scrolling background? From the way the lines change in brightness, it seems like it was done by hand rather than assisted in editing software, which seems like it would have taken forever. That's a production that commands some respect.