It's the size of a keychain!
Our love and passion for video games and game consoles has made us go to great lengths. It inspires us to build different complex and mind-boggling machines, and add the brilliant ideas with open sourcing, we can experience these games on another unique level.
Someone even made a tamagochi sized Game Boy that plays various Game Boy Advance(GBA) and Game Boy Color(GBC) games (plus you can play Doom with it). Now, inspired by that, someone made a different keychain-sized Game Boy that not only emulates GBA and GBC but also emulates NES and SNES games as well.
Introducing the Keymu, the world's smallest emulation console. Created by Vincent Buso, the Game Boy Advance SP shaped keychain emulator runs on an Intel Edison chip. Unlike other small game consoles that rely on the Raspberry Pi, Keymu's Edison chip is quite strong despite its small size. Also, the Raspberry Pi's smallest version is way too big to be "keychain size".
The Edison chip contains a dual core 500Mhz processor, 1 GB of RAM, 4GB of flash storage, has Bluetooth and WiFi, a power management unit and more. The display is a 1.5" OLED display 128x128, so even if it's small, it can project graphics quite nicely.
In his prototype video, Buso demonstrates that the console can play Super Mario Bros. Deluxe, Super Mario Bros. 3, Super Mario World, and even Mario Kart Super Circuit. All of these titles are from different game consoles but played in one, tiny game emulator.
Buso got inspiration for making the Keymu from the tiny Game Boy Color presented by Sprite_TM at the 2016 Hackaday SuperConference. Similar with what Sprite has done with his Game Boy, Buso plans to release files, instructions and tutorials on how to make the Keymu yourself. But with every hacked hardware, the question remains.
Can it play Doom? I guess we'll have to find it out.