I've been trying to get the M&M3 prototype ROM for the Genesis to load up, but have issues at the main screen with an error about being unable to initialize the save. I've tried using both the no-intro verified dump, as well as an older dump that seems to work in emus/emulator devices with the suffix of [h1c], and both produce the same result. Attempting to fix the checksum (which seems to work on some emulators) also doesn't fix the issue.
I was wondering if it would be possible to support this ROM?
System: Mega SG
Latest firmware on SG and SD.