A long, long time ago I started a YouTube series[0] on the internal workings of the Game Boy during a brief break from work. I eventually started working again and animating the episodes was taking way too long, so I had to stop, but I've kept orbiting the world of Game Boy reverse engineering.<p>The amount of dedication, skill, and passion that goes into it on a daily basis is mindblowing, and people keep discovering hardware quirks and bugs to this very day! I believe it wasn't that long ago that people discovered a glitch in the audio subsystem that gave you more control over note envelopes, and it was promptly added to LSDj (a tracker for the Game Boy that was first released in 2000) by the original author, who's still maintaining it to this day.<p>0: <a href="https://www.youtube.com/watch?v=RZUDEaLa5Nw" rel="nofollow noreferrer">https://www.youtube.com/watch?v=RZUDEaLa5Nw</a><p>EDIT: oops, forgot the link!