This page should patch the ddonpachj mame romset with a set of selectable features.
All the patching happens locally, your file is not uploaded to my server. You can save this page to your PC and it will keep working offline! It only works on modern browsers (it was tested on Chrome 89 and Firefox 87).
Here you can select the features that will be patched:
Ready to patch - please click the button above and choose your romset zip file.
Modified roms can be played as follows: