Hi weirdh,
I think only batsugun's format got changed in hiscore.dat, I mean, we don't really control the format of hiscore.dat - it's maintained by Leezer.
If something got changed, though, it's probably for the better
I added the coin fix to donpachi/dodonpachi, but, you really might want to fix your coin button. I can think of about 200 other games that will cause this problem
In my experience, usually wiring isn't the problem when a switch is sticking for longer than it should.
I'd take it out, spray it with wd-40, then compressed air from all angles (to get wd-40 deep into the switch & button, but to also clean out any dirt as well), then wipe it with an alcohol-soaked cloth or papertowel to get any wd-40 off of the outside of the button. then put it back in
If you have deox-it, spray it with that too, before the wd-40. but seriously, remove the button&switch before spraying it with anything
best regards,
- dink