Micro:Gamer is a portable game console based on the micro:bit board. It features a 128x64 monochrome OLED screen, six buttons (plus the two buttons of the micro:bit), a buzzer for sound and a 2xAAA battery holder. The micro:bit is inserted in the back of the board, like a game cartridge on the GameBoy. The specs being similar to the Arduboy, it is quite easy to port existing games to the Micro:Gamer.
Let me know in the comments section if you are interested by this project, what would you add/remove and if you would like to get one.