We're all familiar with Amiga games, demos and music disks with music containing samples, but a YouTube video I saw today made me wonder about the reverse: can you think of any commercial music that includes game or demo music?

Here's one that uses the theme from Simon the Sorcerer:
Monkeys from Hell - Wizard. Jolly techno-pop with a slightly disturbing video!

Taking it to the extreme is the awful Tetris by Doctor Spin, an entire song based on the game music.

And of course there are Machinae Supremacy's Sidology I, II and III tracks.

Any others?