@mitu @dankcushions Thanks again for the guidance. I just needed a nudge. I started 1942, got into Retrarch from there, remapped the buttons for MAME to be what essentially is A/X/L on top and B/Y/R on the bottom. This gave me the B/Y buttons the main use for the games I play most - 1942, TMNT, etc. while keeping the standard mapping for all the other systems.