Brainwash Attack is a Super Attack normally reserved for Elite mission characters or players in Crystal Raids. In Expert Missions, it makes bubbles of dark energy appear around the boss, and if a player is caught in them, they will be frozen in place. If freed, they can continue as normal. If left in the bubble for too long, they will turn into enemies controlled by the AI. The player then has to fight a copy of themselves in a void, and will be freed from mind control if they win, or if another player defeats them in the battle proper.
When used by players, the move instead holds all enemies in place temporarily, but does no damage and they are let go shortly after, leaving them open to attack for a short time. The attack cannot be used for a while afterward.