I have the latest version of batocera 5.25 for pc 64 bit.
I have placed 1 rom in the mame roms folder so Mame shows up on the emulator selection screen.
I installed before and placed all roms and had same problem..so I did a fresh install with one rom.
For some reason the Tab key for the mame menu does not show up.
I realized this when I couldnt figure out ho to press 2 players on any game.
there seems to be no defualt.cfg file under the mame 2003/config folder and I have been frustrated trying to fix this can anyone help.