Guitar Hero is a series of music rhythm game video games first released in 2005, in which players use a guitar-shaped game controller to simulate playing primarily lead, bass guitar, and rhythm guitar across numerous songs. Players match notes that scroll on-screen to colored fret buttons on the controller, strumming the controller in time to the music in order to score points, and keep the virtual audience excited. The games attempt to mimic many features of playing a real guitar, including the use of fast-fingering hammer-ons and pull-offs and the use of the whammy bar to alter the pitch of notes. Most games support, single player modes, typically a Career mode to play through all the songs in the game, and both competitive and cooperative multiplayer modes. With the introduction of Guitar Hero World Tour in 2008, the game includes support for a four-player band including vocals and drums. The series initially used mostly cover versions of songs created by WaveGroup Sound, but most recent titles feature soundtracks that are fully master recordings, and in some cases, special re-recordings, of the songs. Later titles in the series feature support for downloadable content in the form of new songs.
Guitar Hero World Tour, previously named Guitar Hero IV, is the fourth full game in the series and was released on October 26, 2008 for PlayStation 2, PlayStation 3, Xbox 360, and Wii. Analysts had expected that future Guitar Hero games in 2008 would include additional instrument peripherals to compete against Rock Band; Guitar Hero World Tour was confirmed as in development following the announcement of the merger between Activision and Vivendi Games in December 2007. Activision's CEO Bobby Kotick announced on April 21, 2008 that Guitar Hero World Tour will branch out into other instruments including vocals. Guitar Hero World Tour includes drums and vocals, and can be bought packaged with a new drum set controller, a microphone, and the standard guitar controller. A larger number of real-world musicians appear as playable characters, including Jimi Hendrix, Billy Corgan, Hayley Williams, Zakk Wylde, Ted Nugent, Travis Barker, Sting, and Ozzy Osbourne. Guitar Hero World Tour also features custom song creation that can be shared with others.
Guitar Hero III Mobile was released for mobile phones in 2007 and 2008, and was developed by MachineWorks Northwest LLC. The base version of the game includes 15 songs from both Guitar Hero II and Guitar Hero III, and has released a three-song add-on pack every month since January 2008. The title has been downloaded by users one million times, with both Verizon and Hands-On Mobile claiming that over 250,000 songs are played a day on the platform.The two companies produced two other mobile-based Guitar Hero games; Guitar Hero III: Backstage Pass, released in July 2008, adds role-playing elements to manage the band's success in addition to the core rhythm game, while the mobile version of Guitar Hero World Tour, released in December 2008, expands each included track for play on both lead guitar and drums, mimicking the expansion of the console series to the full band. 1e1e36bf2d