Reply To: NeoGeo games not starting / usb speakers on startup

[Floob]

As the Neo Geo games are arcade games, its most likely a rom compatibility issue.

Please read this Wiki entry
https://github.com/RetroPie/RetroPie-Setup/wiki/Managing-ROMs

It is very important to get the right romset for the right emulator when setting up arcade games.

I have also a (slightly dated) video about using gngeo for Neo Geo here: