I had a similar high school experience. Not as much asm but spent way too many hours writing basic programs on that thing. prob should have spent more time listening in class.... nar! :-D
It was lame as crap. Just used the PRNG to multiply one of 5 variables by 10 and then draw them on the screen. Longest number won the race.
If you were clever enough you could reseed the RNG and pick a winner every time.