Been searching for a way to rip the roms from the Super Retro-Cade since it came out and nada. It should be easy, since it’s an android device. I suppose if one could root it they would be able to find the roms in there… If you find anything, please post back to this thread.
There is a way to rip the roms from the Nes/Snes mini. Look up “wiiu vc extractor” on github. Turns out the roms on those are basically wiiu vc roms and so can be extracted the same way you would wiiu vc roms. This worked for me however Zelda and DKC had glitched graphics and Mario Kart crashes before a race starts. Other roms worked fine. I haven’t tried myself on a Nes mini as I don’t have one yet.