@golaat Yes and no. Since some of the emulators run inside retroarch, you are somewhat tied to that environment, but with lr-mame2003 you can actually work around it. You COULD go in and set all of your player 1 inputs to “nul” (don’t use curly quotes like I did here). This is unique for this version of mame because it still “listens” to RAW keyboard inputs. You then have to go into MAME and map keys using the ALL games menu as opposed to just THIS GAME and you will have a nice clean input setup which is what I already proposed above.
However, this doesn’t work for other libretro cores. Still, I