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Use Neogeo Unibios

What Unibios does:

  • Change region (Europe/USA/Japan) and Mode: (AES/MVS)
  • Access the soft dip to change game Difficulty/Life/Time etc
  • In-game Cheat database
  • Jukebox music player… and a lot more!

How to install it on PiFBA:

  1. Get it here (version 3.2): http://unibios.free.fr/download.html
  2. Extract the downloaded file, rename uni-bios.rom to asia-s3.rom.
  3. Open your own neogeo.zip, there should be a asia-s3.rom file inside, back it up if needed.
  4. Put the new renamed asia-s3.rom into neogeo.zip, replace it with the old one.
  5. Now upload the new neogeo.zip back to the Recalbox share folders, on both \bios and \finalburnalpha

How to install it on Fba_libretro :

Launch a game and enter in the retroarch menu ( Hotkey + B )

Go to

Quick Menu > Options

and set :
>

Neo geo mode > unibios

Usage:

For Pifba

  • Start up any neogeo game, you will see the new UNIVERSE BIOS v3.2 splash screen.
  • During this startup screen, press and hold BXY for region/mode setup, or hold ABX for dip switch menu.
  • To access the in-game menu, press and hold BXY+START at the same time.

For fba libretro

  • Start up any neogeo game, you will see the new UNIVERSE BIOS splash screen.
  • During this startup screen, press and hold CBA (XBA) for region/mode setup - Press C to exit
  • To access the in-game menu, press and hold CBA (XBA) +START at the same time.

For dip switch Menu in fba libretro During UNIVERSE BIOS Splash screen , hold A+X+Y

Setting up the soft dip :

For active blood : Region Japan / Mode arcade

slot metal slug

blood > on

Press C to exit.

BIOS

Neo Geo requires a neogeo.zip BIOS file. It will be placed with your ROMs in

/recalbox/share/roms/neogeo
or
/recalbox/share/roms/fba_libreto
or
/recalbox/share/roms/fba

These are the contents of a verified working neogeo.zip BIOS file

000-lo.lo
asia-s3.rom
japan-j3.bin
neo-geo.rom
ng-lo.rom
ng-sfix.rom
ng-sm1.rom
sfix.sfix
sm1.sm1
sp-1v1_3db8c.bin
sp-45.sp1
sp-e.sp1
sp-j2.sp1
sp-s.sp1
sp-s2.sp1
sp-u2.sp1
sp1.jipan.1024
uni-bios_1_0.rom
uni-bios_1_1.rom
uni-bios_1_2.rom
uni-bios_1_2o.rom
uni-bios_1_3.rom
uni-bios_2_0.rom
uni-bios_2_1.rom
uni-bios_2_2.rom
uni-bios_2_3.rom
uni-bios_2_3o.rom
uni-bios_3_0.rom
uni-bios_3_1.rom
vs-bios.rom