This is cool, TomDad, thanks!  What's most amazing is you did this in about 50 instructions - cool! As Hymake said, it's very hard, because it goes so fast.  I added a 100 millisecond delay to the main loop, as shown here - that's only 1/10 of a second - and now I can actually play it, slow oldish guy that I am, lol!  ...