The Lego Game Boy set was officially released on October 1, 2025, but one modder has already gone further than Lego and Nintendo. Lego first announced the 421-piece Game Boy replica at San Diego Comic-Con in July, with preorders opening the same month. Modder makes Lego Game Boy play actual gamesInstead of using an emulator or Raspberry Pi, she designed and built a custom circuit board with genuine Game Boy chips, small enough to fit inside the Lego shell. The build plays real cartridges, supports working buttons, and charges via USB-C with a rechargeable battery. Already known in the modding scene for aftermarket Game Boy components, she said the Lego version will eventually join her shared circuit board projects.