> I'll look into it but it might have to come from a different pcb if it's something
> shared between versions and we can get an old ver for cheaper. I haven't heard
> anything about sacrificing the pcb, don't know if that's an option on this one.
2 chips were secured once for 'Dr Decapitator' (#97 and #98), but are marked as 'possibly lost' since then. Those (NEC µPD7755C/µPD7756C) were used in a few arcade games, a few Famicom games and a few MSX games (baseball games by Jaleco and Sony) and it seems not all of them have the same samples pack (so it's probably not enough to dump only 1 chip from any of them). And there's also 1 more Famicom game that uses Mitsubishi M50805 instead.
Though, it's probably not needed to sacrifice ALL of them, just listening/comparing the samples should be enough to find out the different ones.