If the user is using an emulator, they need the correct ROM, the right emulator (like MAME), and possibly a configuration file to tweak the settings. If they're trying to run the arcade version, the fix would be about emulator setup. Alternatively, if it's a PC port (which I'm not sure exists), then compatibility fixes would apply.

Ecstasy Ko: Fighting Queen Fix

If the user is using an emulator, they need the correct ROM, the right emulator (like MAME), and possibly a configuration file to tweak the settings. If they're trying to run the arcade version, the fix would be about emulator setup. Alternatively, if it's a PC port (which I'm not sure exists), then compatibility fixes would apply.