I did some test today.
I use cartfriend as 1st rom.
1st, check the EEPROMs. I patched all the EEPROM IPS patch from github here:
https://github.com/splash5/ws-eeprom-to-sram-ips
And choose 3 to test all OK: gunpey EX, Raku Jongg, tetris. Can save without any issue.
Then, I double check the list again.
I think the Digimon Digital Monsters for WonderSwanColor (J) [!].wsc should be same as: Digital Monster Card Game for WonderSwanColor (J).wsc. Because I didn't find it in goodwsx. And no-intro. They should be the same??
And still didn't found the patch of puzzle bubble. So, still cannot save. Anybody have this patch?
2nd, the SRAM games which cannot run.
I didn't test the wonderwitch.
The BEAT MANIA will be crash when open it in the flashmasta program. Cannot even open it. Cannot flash it into the cart. Totally Failed.
Cho Denki Card Battle will be crashed. Totally.
Digimon games, One Piece - Grand Battle Swan Colloseum and guilty gear, can run, but seems they're FTG game, I really don't know how to save, what I can get, when to save. But seems save is OK (at least they didn't stuck)
One Piece - Niji no Shima Densetsu. Can save, after reset, backup, reload again. Still OK.
Makaimura OK. Like above.
All conan OK. Like above.
Riviera OK. Like above.
That's all.
So now, except the wonder witch. Just only the puzzle bubble, beat mania. Cho denki failed. The cart and cartfriend is pretty well.