In Peggle, players fire a metallic silver ball from the top of the screen, relying on gravity to propel the ball downwards while ricocheting off orange and blue ‘pegs’. The goal is to clear all the orange pegs from the screen before running out of balls. A moving “bucket” at the bottom of the screen offers free balls, while green power-up pegs give the player one of ten different abilities, such as explosive area-clearing blasts, lobster claws which serve as pinball-type flippers, and “fireballs” that cut through all pegs in their path.