This N64 Controller Can Play The Entire Game Boy Library -- Time Extension
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This N64 Controller Can Play The Entire Game Boy Library
https://www.timeextension.com/news/2024/04/this-n64-controller-can-play-the-entire-game-boy-library
A three-pronged attack
"The modder has taken a broken N64 controller and given it a new purpose: playing Game Boy, Game Boy Color and Game Boy Advance games. We're talking physical carts here, too – this pad contains a fully-functional GBA console, and isn't based on emulation...."