@sleve_mcdichael Regarding non G-Net games, I was also trying to get Guardian Force (grdforce) and Soukyugurentai / Terra Diver (sokyugrt) to work in MAME 2010. I had poor results in 2016, and according to the following compatibility list 2010 should be able to run them at some capacity:

https://buildbot.libretro.com/compatibility_lists/cores/mame2010/mame2010.html

However when I try to load these games in 2010 the emulator freezes. These are stvbios games which seem to have mixed results in MAME. Yet some, such as Shienryu, will even run in MAME 2003-Plus. Just curious if anybody had success with those particular two.

@windg recent MAME will emulate this game (with glitches), it's extremely unlikely to run full speed or even at a playable speed on a pi4 though

@Darksavior Thanks Darksavior. I was using a different rom which wasn't working as well.