Guitar Hero is a music video game for the Sony PlayStation 2 developed by Harmonix and released in 2005. Guitar Hero's gameplay features the use of a special guitar-shaped controller modeled after a Gibson SG guitar to recreate the lead guitar part of several rock music songs; the player scores in the game by both pressing one or more fret buttons on the controller and using a strum bar in time with notes as they appear on screen.[1] The game features a total of 47 songs.