This project is so cool! I felt like I could play around with this all day. My only complaint would be that I wish you could extend the song's length so that I could go on to create much longer pieces.
Also, I absolutely adore the many little elements of polish in this project, such as the way that the PC and mouse jitter when you click on them or the boot-up initialization screen that appears when you first interact with the PC. They're such small touches, but they add some much!
This is the fun little tune that I came up with: A9249C5