A Modernized Game Boy Stores Games on microSD but Uses Physical NFC Cartridges to Pick Them

PicoDMG rebuilds the original Game Boy experience with modern microcontrollers while preserving the original shell, controls, and AA-battery feel. Game files live on microSD, and a game can be selected by holding a cartridge fitted with an NFC tag near the system.

On the original Game Boy, changing games meant inserting a cartridge into the console. PicoDMG modernizes that interaction too: the open-source project by dodger-one can associate an NFC tag in a cartridge or other object with a corresponding ROM and launch it when scanned.