The RetroGame is a simple hand-held video game that physically consists of a PCB (printed circuit board) with a 5x7 LED matrix display, two pushbuttons, and surrounding control and power electronics.
Arguably, the coolest part of the RetroGame is that you play it while holding on to the PCB itself which is shaped like an old video game controller.
So, read the article, then build your own for hours of fun for you and the kids!
Full kits or just the PCB are available in the Nuts & Volts Junkbox!