Those are the "non-working" ROMs. Games like Hard Drivin' or Steel Talons .
But here’s the deep cut: Which one is the real game? The parent is the original Japanese release. The clone is the American localization. Yet most of us grew up playing the clone. We have nostalgia for a derivative work . mfme roms
Why? Because the mission statement changed. The goal is not to play games. The goal is to ensure that when the sun expands and the last PCB has rotted into dust, a future historian can run mame64 pacman and see not just the dots and ghosts, but the logic of the 1980s. Those are the "non-working" ROMs