Firstly if you haven’t already you should change the default emulator in RetroPie to mame4all-pi as it has much better performance. Search the forum on how to do this. Then the romset you need is 0.37b5
Reply To: MAME Roms not working
Firstly if you haven’t already you should change the default emulator in RetroPie to mame4all-pi as it has much better performance. Search the forum on how to do this. Then the romset you need is 0.37b5