Hi all !
'Beast Busters' (SNK Arcade-1989), could be a good candidate too
-Beast Busters board isn't the Neo Geo, it does share some features that would later make it to the MVS , like the 68000, the
-Z80 for sound, as well as the same sound chip.
-This was perhaps the first SNK arcade to use the YM2610 later used in their Neo-Geo MVS, AES and slightly Neo-Geo CD just for its startups.
Beast Busters is perhaps the only non-Neo-Geo SNK arcade that uses YM2610.
For example, I don't know if it would be difficult to adapt the roms: bb-1.e6 -> to M1 ROM & bb-pcma.l5 + bb-pcmb.l3 -> to V ROM
https://tcrf.net/Beast_Busters_(Arcade)
Hidden Credit: -> The following text is found at 0x2721 in the audio CPU: SOUND CONDUCTER Ver 1.0a for YM2610(OPNB) by Mr.Pac hector Ber.1989/06/17
on Wiki ,
https://wiki.neogeodev.org/index.php?title=User:Freem/Sound_Drivers/Mr.Pac Origin: It is likely that this sound driver is based off of the one found in Beast Busters, which contains this signature:
SOUND CONDUCTER Ver 1.0a for YM2610(OPNB) by Mr.Pac hector Ber.1989/06/17
for information:
Furrtek carried out a few years ago, a test with a PS2 optical gun with a Neogeo CD, and it worked quite well
Mark McDougall (tcdev) is still working on game ports for NeoGeo since 2014 :Knight Lore +Donkey Kong+Lode Runner +Asteroids , Scramble ...
http://retroports.blogspot.com/Bests regards
Fred/FRONT!