downloaded the link put it on sd card does not work still please make video on how to do it? no one else has!
how did you do your set up? I put the bios disksys.rom in the BIOS folder and all i get is a gray screen....
It could be that either the bios is a bad dump or the game that you're testing is, i'm not sure. I put together a zip a long time ago that has it exactly how i've had my FDS configuration set up. You can try using it and see if it'll fix the issue for you: www.mediafire.com/file/4lffwn9m62w8he6/Retro+Freak+FDS+MicroSD+Setup.zip
I thought it was Duck Hunt with the barking dog :) I have my Retro Freak now and there are lots of controls that work. You can even plug a mouse in even wireless Logitech controllers work on it.