One more interesting thing, I noticed that some of the game conversions are done by different people (obviously). In particular for example "ggx_v2p.bin" is not *tagged* by the person that fixed it to run on Naomi. It plays fine for me, no black screen issue!
Where as an alternative example "AW - Guilty Gear Isuka.bin" we see in the header "NAOMI
www.arcademodbios.com AWNAOMI" or in dolphinblue.bin we have a similar "-=
WWW.ARCADEMODBIOS.COM =-" and "ATOMISWAVE-LOADER V1.2 (C)
WWW.ARCADEMODBIOS.COM", neither of which boot for me.
Likewise "NAOMI2FIXED VERSIO BY DARKSOFT" is in kov7spirits_Naomi2_Fixed.bin which is also not booting for me.
I've also seen "DARKSOFT RULEZ", "** Status DUMPER v2 by Darksoft **%", and "** Status DUMPER v1 by Darksoft **%"
I'd bet this is yet another a common thread to the ones that don't boot.
Now here is the kicker... I noticed the first time I loaded "ggx_v2p.bin" it comes up saying I have an "EEPROM ID or VersionErr" and instructing me to go into GameTestMode.
In doing so I was presented with some status info:
"BACKUP ROM CLEANED", and "EEP ROM CLEANED", and instructed to press my test button twice before the game would boot.
These strings are in the rom seemingly related to what it is doing when it cleans things up:
USER EEPROM GET FAILD !
USER BACKUP GET FAILD !
USER EEPROM GET SUCCESS!
USER BACKUP GET SUCCESS!
USER EEPROM GET FROM BANK 0
USER BACKUP GET FROM BANK 0
USER EEPROM GET FROM BANK 1
USER BACKUP GET FROM BANK 1
USER EEPROM CLEARED!
USER BACKUP CLEARED!
EEPROM ID or Version Err
Pelase Execute GameTestMode
EEPROM / MASKROM
ID :%6x / %x
VER:%6d / %d
Press any key To Start Default Setting
BACKUPRAM ID Err
Pelase Execute GameTestMode
BACKUP / MASKROM
Since seeing these messages, I've now been able to play AtomisWave games just fine. I hope that is useful to someone.
*shrug*. I've noticed that from time to time I need to come back and repeat these steps.
Maybe the other games hit some corrupt bytes in BACKUP / EEP ROMS and that prevents them from booting?