I've been having (what I assume is) the same problem running Naomi/Atomiswave on a Ryzen 2200g system.
I'm new to batocera, but I can confirm I have the correct bios in the folders so I assume its not that. The second thing to note is normally when its a rom or bios issue the menu fades to black like it's loading the emulator, then fades back to the menu. This isn't what I'm getting with these 2 systems. It switches to the emulator with the border visible, the game screen flashes some rainbow garbage, then the whole system freezes. Hitting escape or alt-f4 doesn't do anything, cycling the power is the only option.
