> It's possible, either a redone remarket official version or a hack. I'm not a
> programmer, I've heard people say they can look at code and tell if it has been
> hacked vs source changed and compiled but I can't tell the difference myself.
well sometimes it's possible to make an educated guess, depends on the nature of the changes.
in this case I suspect we don't actually have the original version even if it is a hack tho, so it's likely to be a different codebase to anything already in MAME making such comparisons impossible - that undumped Gals Panic 4 with Gals Panic SU title is likely to be the original IF this is a hack.