This is a fully functioning game console with 4 bits of RAM (maybe more in future?), a 12x8 screen, a functional controller, sound system and more. It's in the early stages right now, but soon it'll be open to the public.
As well as playing the demo games, you can even copy a dev kit and make your own game! ..Just know it's not programmable -- you'll have to create physical circuitry to make your game, so this build is primarily targeted at wiring pros.
Who knows? I might host a little competition once it's finally out!