Reply To: Mame4all roms cannot be played

[Floob]

What happened when you tried to run a game before? The roms should just load unless they arent the correct version.

You can check they are the right version with clrmamepro:
https://github.com/retropie/RetroPie-Setup/wiki/Managing-ROMs

The dat files can be found in that link as well.

If you install 3.0.0 beta 2 mame4all is already installed (its already on all the RetroPie builds). The version 3 seems pretty stable, I’d run with it, but 2.6.0 is fine as well.