I can also guide you on how to to 2003-Plus standards. Share public link
: It is the preferred core for RetroPie , Recalbox , and EmuDeck when running on hardware that struggles with newer, more resource-intensive MAME versions. 2. Building the Perfect Romset mame 2003plus romset
If games like Metal Slug (Neo Geo) don't work, make sure neogeo.zip is present. I can also guide you on how to to 2003-Plus standards