Gaming SA have this, which is pretty cute. One Thrashbarg - we suspect not his given name - decided to actualise the end sequence and a suitably creaky old terminal to play the tune. The processor is a Intel 2Mhz 8080. The sound is a Commodore 64 Side. The Code is assembler. And the video of it can be seen here. One question remains - since it's a YouTube link, why didn't I just post the code linking to the video and save myself the effort of cropping and uploading a screenshot? I must have kidney beans for brains.
Thanks to Mr Purvis for the link.