I think I got it, do you guys happen to have any frogger artwork inside artwork's folder? If so, either try running groovymame with -artwork_crop param or delete/rename your artwork folder...
BRILLIANT! You have solved it my friend, well done
All these are now working 100% for me in 15khz
Frogger
Moon Cresta
GunSmoke
Galaxian
Scramble
Everything seems fine, thank you for your determination Calamity - you saw the job through to its end
Is the last build a hack with a special case for Frogger?
Could you test if hiscore support is working your end with the last build please?
EDIT:
Also, could I be so bold as to request an additional feature?
This might not be appropriate, but I will ask anyway:
Add 2 new parameters to .ini/command line.
Xadjust and Yadjust
These are pixel values that are added to the games native resolution to help with overscan issues
(add the Xadjust/Yadjust values to the native res before selecting a resolution)
I realise I could just supply a new resolution instead of this method, but it would be very long winded for a large gamelist.
What do you think?
Thanks again for all your hard work and commitment to this project!