Players using a "dirty" superstar must direct their superstar into building up their "dirty" meter by performing "dirty" tactics, such as attacking the referee or taking the pad off the ring's turnbuckle. Unlike performing dirty tactics, "clean" superstars build their meters by performing "clean" tactics, such as an aerial technique or performing a taunt. When "dirty" superstars' meters build up, they are able to perform a signature low blow; likewise, "clean" superstars can perform their signature move at double its normal damage.[17][18]