For anyone else trying to troubleshoot, here’s the error message from the console when you exit (select+start) the emulator after the setup menu (in my previous screenshot):

kinst: DrvInit
kinst: loading image at kinst2.img
kinst: harddisk image not found!kinst: DrvExit

I’ve tried creating a ‘kinst2’ folder in the pifba roms folder and placing different image file variations (kinst2.chd, kinst2.img, etc) in the folder. I’ve also tried placing the image files directly in the pifba roms folder. I’ve even tried zipping the rom and image files together with no luck.

I should also note that when the setup menu comes up, moving the controller and pressing buttons does nothing. I assume it because this menu was navigated using actual, physical switches in the arcade cabinet.