It isn't the ROM. The graphics microcode for the game hasn't been reverse-engineered yet so no standard graphics plugins will work. That's what the 'unknown microcode' error is warning you of.
The only emulator with a chance to run it would be a low-level emulator, such as MESS. I should warn you though, you will need to have amazing computer specs to run it anywhere near full speed. There might be a low-level graphics plugin for other emulators by now, but these don't have anywhere near the compatibility of MESS.