Midway Wolf Unit ‘Any U64’ CMOS Errors
Hacked program ROMs for each of the Wolf Unit games that allow game-swapping without the need for a game-specific security PIC have been freely available for a while (I won’t link them here but you might find them if you search for “Any U64”). However, depending on the PCB, conversions to 2 On 2 Open Ice Challenge and NBA (Maximum) Hangtime reportedly did not work correctly due to CMOS RAM issues:
