I have these files in the NEOGEO dir:
000-lo.lo
gog-broken-romsets.xml
gog-romsets.xml
neo-epo.sp1
popbounc.zip
romsets.xml
sfix.sfix
sp-s2.sp1
uni-bios.rom
I am trying to get Pop n Bounce working. Core setting are - System Type: Arcade(MVS); BIOS: UniBIOS; Video Mode: NTSC; Input Spinner. I've mapped A,B,C and Start / Coin to the spinner buttons (Ultimate Spinner PRO). However, when I load the game ROM I just get Cross Hatch Test screen. Pressing B to do soft reset just goes to black screen. Anyone know what the issue might be?
As a side note, today I just did an update_all. I had never used this core before so don't know if it ever worked on my setup.