Ho ho huh? GGPie turns your Game Gear into a Game Everything Else

Here's a Christmas curveball for you. Galix's GGPie uses the Game Gear TV Tuner and a Raspberry Pi Zero to turn your Game Gear into a most-in-one game console. The problem is that while the Raspberry Pi has more than enough power to emulate everything up to the original Playstation, the Game Gear has a severe button deficit, so...