Guitar Hero III: Legends of Rock is the third full game in the Guitar Hero series and fourth game overall. The gameplay remains similar to the previous games: using a guitar-shaped controller, you need to coordinate pressing the five fret buttons and strumming to the scrolling notes on screen. Missing notes will cause your performance meter to drop; if the meter drops too low then the performance is a failure and you will need to try again. This edition of the game features 71 new songs to play from various artists including Cream, The Rolling Stones, Black Sabbath, Aerosmith, Guns N' Roses, Santana, Sonic Youth, Weezer, and many more. In addition to the available songs the game also features "boss battles" against famous guitarists such as Slash, Tom Morello and Lou the Devil. Several game modes are available including career mode, co-op mode, and multiplayer mode. In addition to the main game modes, training and practice modes are available to aid in learning the game or figuring out a tricky passage in a song.