The Retroid Pocket is an open Android emulation machine filled with all of the apps that you need to start gaming from day one. The unit comes preconfigured, so it’s suitable for novices and veterans alike. The Retroid Pocket supports every popular retro system, including MAME, Neo Geo, NES/SNES, N64, PS1, PSP, GB, GBC, GBA, and Sega. With Bluetooth, HDMI, and WiFi support, the Retroid Pocket can easily become a home console in a matter of minutes.
There is a dual boot version that can boot into a OS called retroid and can boot into the android OS. Both single and dual boot versions are available in the link below.