Esoteric question:
Does anyone know how to put Asteroids Deluxe into self-test mode when it's being emulated? It's running on an Evercade table top machine. I think it was a physical on / off switch which you flipped before restarting on the original game cabinets, but I don't know how to make that happen on the Evercade. Asking for a person who asked me, and I'm stumped.