You can bypass the simple RetroArch file browser completely by installing "Playlist Buddy" or by manually generating .lpl playlists for box-art browsing using RetroArch’s built-in scanner (Settings > Import Content).
: If your controller isn't recognized immediately, try holding Select + Down for three seconds to switch the adapter mode. retroboot 1.2.1
: Supports compressed cores and CHD game files to maximize space on USB drives. You can bypass the simple RetroArch file browser