Mame Neogeo Bios [upd] Direct

Ensure the file is named exactly neogeo.zip in lowercase.

Once a fully compatible neogeo.zip file matching the active MAME version is sourced, keep a backup copy in a separate directory before updating software. mame neogeo bios

: These contain the 68k startup program and lookup tables used by games across all Neo Geo hardware. Ensure the file is named exactly neogeo