The Odroid Go is Odroid´s 10th anniversary DIY kit. Odroid is a South Korean chip company.
The Odroid Go heavily resembles a Game Boy Pocket. it has a very good LCD screen for emulation. The button feels sturdy and d-pad is firm. The case is semi-transparent, so you can see the inside components. It uses a 1200 mAh battery which supplies several hours of gaming. There is a light next to the screen for micro USB charging.
It can run Game Boy, Game Boy Color, NES, and SMS roms through a micro SD card that can be inserted through a slot in the back. The SD card requires beforehand setup, but luckily no flashing. All the games run smoothly and the supplier is relatively reliable. I recommend this console for casual pocket gamers.