Try a different FBA emulator. I have found that with some FBA roms in some emulators you can’t insert a coin no matter what, even after reassigning the hotkey. Particularly Capcom roms. However, if you use the same rom in a different emulator, it works fine. With the right fba bios some games will run in nearly any of the fba emulators.
^^ my other hobby
This reply was modified 1 year, 2 months ago by labelwhore.