This is most likely the world's smallest fully-functional Game Boy Color that is fit to your pocket, You can be able to play all of the games using the tiny direction pad and buttons, with all the display and battery and in the original form factor. This is an unbelievable hack which sports a tour de force in hardware and software. This will definitely rank in the top five hacks you've seen this year.

Everything You Should Know About The World's Smallest Gameboy

The screen is a little off, since the original Game Boy has a resolution of 160×144, while the hack only uses a 96 × 64 color OLED display. It also runs on an ESP32 chip with integrated Wi-Fi to transfer ROMs to the Game Boy and even has a built-in speaker, all housed in a custom 3D-printed case. Sprite_TM also had to do some software hacking to get the GNUboy emulator to fully function on such limited hardware, but at the end of the day, it not only runs Game Boy games but even Doom.If you get to 39 or so minutes, you can see that, yes, it can barely play Doom.

The Smallest Gameboy Can Also Be Downloaded And Played Like A Normal Gameboy

Since the device is too tiny to use actual cartridges, it downloads games from a network then boots them through an onboard Game Boy emulator.The whole thing looks totally impractical and uneasy to play and that's why it's really exciting. This isn't an exercise in ergonomics or market feasibility, it's a guy saying "I want a Game Boy on my keychain or can fit on my pocket" then just going out and making it happen.
Despite the lack of pixels the screen still looks fantastic! The user controls feel normal and the sound is respectable, although a bit of delay is present and he has a fix for that on his todo list. Sprite will release code under GPL once he has it cleaned up. So Stay tuned for more updates about this cutest and tiniest Gameboy ever.