@zeotherm said in Unable to launch RGUI for core input remapping in a certain game:
One day I may look into getting a better ROM set.
It's not that you really need a "better" ROM set, it's that you need the specific ROM set intended for the emulator that you're using. pifba might get you up and running in this one case and even a few more out of sheer coincidence, but with all the games that these arcade emulators support, you're going to run into incompatibilities pretty often without coordinating the ROM set versions to the right emulation software.