One of the projects that is both the most ridiculous and that I'm proudest of is my JAMMA Sega Mega Drive. In short, it's a Mega Drive that connects to an arcade machine. When connected to the JAMMA harness it sends video and audio, is powered by the arcade machine itself so no need for a separate power supply and can be controlled by a 2-player arcade control panel. In addition to this it is still a fully functional Mega Drive for regular use and has language and 50/60Hz switch and widened cart slot for Japanese cartridges. There was so much squeezed inside that console I'm still amazed I got this thing working to this day!