They also threaten to sue grassroots scenes playing their >20yo games. Scenes that spend on their own dime to host 1000+ entrant tournaments and use skilled time to push the old game to the limit. (Melee). They have the scene currently in a legal stranglehold. It's partially gagged, but people who host Melee events are beholden to Nintendo so they can't run even lightly modded gameplay.

Melee runs on mods always nowadays (input processing patches for fairness and bugfixes), but they mod it in a way that doesn't have any visible difference so they get away with it.