AtGames Arcade legends flashback Custom Firmware update Plus Roms. All in one, Instructions are in there. Seed, please. This update will allow your arcade legends flashback to play, NES, Mame, Genesis, Sega Cd, Sega master system, and Gamegear games, 

With a hefty collection of roms for each console.  Normally you would have to find these a few at a time, And rename them without spaces and special characters. With this file, everything is there. Just read the instructions, update your firmware, Copy the files to the root of the SD card, and you are all set.

Remember, Seed this file as Much as you can, These things are rare to find and even harder to amass in such a collection as this