On fire
In some Slime Volleyball games, notably Quin Pendragon's two player slime, and Power Slime, you could go on fire according to certain criteria (winning a number of points in a row, or power ups)
and move twice as fast.
This enables abilities such as running and the Wabam Slam among others.
In One Slime, only the Psycho Slime opponent is on fire, and the human player cannot be on fire.
