> It's the hi score dat which causes broken graphics on the dog tags in demo screen
You get to contact Leezer about the issue and hope he can fix it. Or maybe cracyc might have time to fix it eventually , but it should not be considered an emulation (ie MAME bug) issue for a MT entry since highscore.dat is an external 3rd party project.
Here are the links to the specific files related to the game. The game is part of the asuka.cpp source file that also supports other games. Their could be other games from asuka.cpp that have graphical bug issues if using the highscore.dat file.