Thankfully the STM32’s inputs are 5V tolerant, so things worked just fine. Simple Game Boy cartridges like Tetris were able to directly map a ROM device into the Game Boys memory space.

Quick question — what’s more important to you? A lifetime of pain-free typing, or a cramp-raddled but nostalgia-fuelling ...

And actually running Tetris would require ... replica console, game cartridge, controller, and TV consisted of 2,646 bricks with a price tag of $200. I imagine the Game Boy set will be somewhat ...