I have had the same problem as other forum users, and that is that using the CORE “MAME 0.220” I was not able to get the maximum scores to be saved.
I have watched a large number of tutorials online, until I have managed to find out how it is achieved.
Once this is done, I have simply created a file, which once copied to our system activates everything at once, without the need for user intervention.
Simply unzip the contents of the attached file
Copy and paste the “MAME” folder in
\ batocera \ share \ bios \
Restart the system, and it should work.