Try running some games that are not Y2K proof on dosbox, like old versions of Math Blaster, is kind of hilarious.
The two I really want to work, Classic Tetris and a weird French game "popcorn", which my daughter LOVED, don't run right. popcorn was tied too closely to the processor clock, so runs blindingly fast no matter what I try, and Tetris doesn't think it has a speaker so you don't get that lovely 8-bit Russian folk song accompaniment.
Maybe something has changed, so I should try them again.
Ahhh..."popcorn" was written in assembler. That explains a lot. But apparently there's a recent rewrite.