inb4 "After School Special is from a mexican rap song!!!!!"
This is a common misconception. I wish I'd saved proof of it, but I asked Badspot once on his server what the source of After School Special was. He told me it's from a royalty-free music CD he got back in 1996. Indeed,
"Me Cacharon Mis Papas" (semi-nsfw warning) seems to use the same stock music source, but one is not
from the other.
Of course, neither "source" is a video game, but I feel it's worth bringing up before someone else does.