Hey there I am kinda new to this,
so sorry for the trouble.

When I run a rom of The King of Fighters or Metal Slug i get some errors like:

-ng sfix.rom
-neo something.

By the morning I will be betting the exact names.

Do you know why this is happening? Does Neo Geo bios have something with it?

Best Regards and Great New Year's Eve,

Maxwell Dalboni