Setting up OpenBOR (Open Beats of Rage) within RetroArch can be a game-changer for fans of fan-made beat 'em ups and side-scrolling brawlers. While OpenBOR is often run as a standalone engine, integrating it into your RetroArch setup allows you to leverage unified shaders, controller mappings, and achievements.
Once installed, you can drop your .bor folders or .pak files into the /home/pi/RetroPie/roms/ports/openbor directory. retroarch openbor core install