(Competitive) (Ultimate) Marvel vs. Capcom 3 matches typically start with a button check. Do the players perform actions simply to check that (all of) their button assignments are correct? Is it not sufficient to see what the button assignments are?
My question comes from more of a Super Smash Brothers fighting-game knowledge background, where button assignments are typically non-customizable, so there are no button checks. And even in those SSB games whose controls are customizable, one need not button check them/perform actions to know that they are correct.
Best Answer
There a few reasons that button checks are common at fighting game tournaments: