I have a problem friend, it is an arcade controller with 6 buttons a, b, x, y + L1 + R1 and select and start buttons but for Mario to throw the things he grabs he does it with L2 as I do to add this button and not lose the 6 hits in street fighter for example
As I said, you can manually change, add, quit… button assignments to your liking in quick menu / controls / port1 controls, and save settings “per game”, if you do it right the change will ONLY affect that game, not the rest