Input Port
Everything for one player, which controller they use, what kind of controller the game thinks it is, and what each button does. The same screen opens whichever player you picked on the previous screen.
Back to Settings
Menu Options
Visible Options
Controller
Which controller this player uses. Auto lets MustardOS choose, or pick a particular connected controller by name, or None to leave this player out.
Core Device
What kind of controller the game believes it is talking to. Some games behave differently with a stick-based controller. The choices come from the system you are playing, and Default is right unless a game specifically wants otherwise.
Stick to D-Pad
Send this player's stick to the d-pad as well, for games that never understood a stick. The forced choices send it to the d-pad only, so the stick stops being reported separately.
Button Mapping
Change what each button does for this player, and set up automatic rapid-fire on any of them.
Macros
Record a sequence of button presses and put it on a single button, so one press performs the whole run of them.
Quick Tips
Tap MENU on any row for a short explanation of what it does, and hold MENU instead to slide the menu out of the way and watch the game behind it.
Using Reset Port on player one hands them back your device’s own buttons. For players two to four it goes back to Auto.
If a controller you assigned to a player is not switched on next time, player one still falls back to your device’s own buttons, so you are never left unable to move.