Veteran music videogame developer Harmonix Music Systems has been busy in-studio, enriching this rockstar experience with more features and multiplayer modes. In addition to the traditional head-to-head competition, Multiplayer Co-op Mode allows players to collaborate in order to beat songs, with each guitarist playing a separate guitar track. Available guitar tracks include lead, rhythm or bass tracks, depending upon the song. The Guitar Hero SG Controller used in the first installment will also be compatible with the new game.