Stale-Move Negation

Stale-Move Negation refers to using the same particular move over and over again, losing power with each attack.

Masahiro Sakurai added "Stale-Move Negation" to the Super Smash Bros. series in order to encourage players to try different attacks out and use characters to their fullest instead of using the same attack over and over again. When a character uses an attack, usually their more rapid weak attacks, too many times, the damage it does goes down until it becomes nothing like it's original power.

In Super Smash Bros. Melee, one could get "Stale Moves" as a Bonus at the end of a match.