Glad you find joy in it. It's 6502 assembly, in case you were wondering - Though the chip was a low-voltage 6502-alike called the Sunplus.
Those things were pretty crazy when they glitched out, my friend had one which would get thrown in into a loop where it just open and close its eyes looking from side to side going WEAOWEAOWEAOWEAO like some kind of possessed demon until you took the batteries out.
Oh yeah, obligatory picture of what I'm pretty sure is Margaret Hamilton standing next to a printout of that lunar lander code [1]
[1] https://www.nasa.gov/sites/default/files/thumbnails/image/ma...