Your first question is probably "why?" and that's fair. In a world of weird (but cool) Gameboy mods such as the "thicc boy", "tall boy" and "wide boy" I decided that I wanted to throw my hat in the ring and make a mod that would fall under that category of weird accessories that you would probably see in the early 2000's. With that in mind the ridiculous 3 tier PCB 4 game changer system was made! 

The biggest PCB houses the 4 cart slots, 4-32 pin male and 3 holes. This PCB is meant to rotate and line up 1 of the 4 male headers with a female header that's soldered onto the middle PCB. This PCB then runs all the passed through connections to the PCB that slides into the Gameboy color cart slot. Thus, giving you a very easy but mechanically excessive way of having four games plugged in at once!  

Thank you so much for checking this project out! Be sure to click on the YouTube link to see this crazy thing in action! In the description