Super Smash Bros. Brawl is a crossover fighting game and the third installment in the Super Smash Bros. series. Like it's predecessor, Players choose from characters like Mario and Pikachu to knock opponents off the screen. Characters start at 0% and increase to 999% as they take damage. As their percentage increases, they fly back when hit. When knocked beyond a stage's boundary, they lose life, points, or coins depending on the mode of play.