Our resident musician McKlain has recently released a compilation of his greatest chiptune hits from 2011 to 2016, including some tracks from the 4MHz games such as Adiós a la Casta, Adiós a la Casta 2 and the unreleased Juan Carmona.
There are 30 tracks and you can download it here:
https://mcklain.bandcamp.com/album/basic-11-ready-a-chiptune-compilation