European-Exclusive Guitar Hero Metallica Solo Guitar Game Bundle Available At Launch". MCV. 2009-05-11 . Retrieved 2009-05-11. a b Yarm, Mark (2009-03-19). "Lars Ulrich Reveals the Secrets Behind Guitar Hero Metallica". Blender. Archived from the original on 2009-03-22 . Retrieved 2009-03-29. a b "Guitar Hero Smash Hits Review (Xbox 360)". Team Xbox. 2009-06-17. Archived from the original on 2009-06-22 . Retrieved 2009-06-30.

Carless, Simon. "Exclusive: Exploring Guitar Hero III 's Patent Secrets" . Retrieved 1 January 2017. The following table lists songs that have been added to GHTV since launch, including those released through Premium Shows and those directly added to the service. [14] Show Name

November 2015: Makuch, Eddie (18 November 2015). "New Guitar Hero Live DLC Songs Revealed, See Them Here". GameSpot . Retrieved 25 November 2015. Morris, Chris (2011-03-24). "Call of Duty, Guitar Hero Top All-Time Best Selling List". CNBC . Retrieved 2011-03-24. "The Best Selling Video Games of This Generation". CNBC. 2011-03-24 . Retrieved 2011-03-24.

In 2020 online servers for all Guitar Hero games were shut down on PS3. [36] Between this and the closure of Wii online servers for all games, they are now only playable online on Xbox 360. Yin-Poole, Wesley (1 April 2016). "Layoffs at Guitar Hero Live developer". Eurogamer . Retrieved 1 April 2016. Spenser (2013-01-02). "Sing Hero Is The Activision Music Game That Never Was". Siliconera . Retrieved 2013-01-02.Semel, Paul (2009-04-13). "Guitar Hero: Metallica Review". G4TV. Archived from the original on 2013-01-23 . Retrieved 2009-04-13. With a wireless controller you’ll need a USB dongle plugged into your PC before you start. Most wireless controllers come with a dongle in the box. If you bought yours used and there was no dongle included, then you’ll need to buy one before starting. The games have also added multiplayer modes. Cooperative modes allow two players to play lead and either bass or rhythm guitar on the same song, working together towards the same score. A competitive Face-Off mode allows two players to play against each other at different difficulty levels, each attempting to earn the best score on a song. Each player plays different portions of the song. There is also a Pro Face-Off mode, where two players battle at the same difficulty level. Unlike standard Face-off, each player attempts to play all of the notes in a song, while still trying to earn the highest score. In Guitar Hero World Tour this was advanced on, as players could play a Pro Face-Off game against each other on any difficulty level, the lower your difficulty, the more points were awarded so a player on a low difficulty could potentially beat a player on a more challenging difficulty. Guitar Hero III introduced Boss Battles, in which two players face off against each other, attempt to collect "distractions" to throw at their opponent, trying to make them fail. With Guitar Hero World Tour, up to four players can play cooperatively on lead and bass guitar, drums, and vocals, while a total of eight players can compete in a Battle of the Bands. The Xbox 360, PlayStation 3, and Wii versions of the games support multiplayer modes over their respective network services. NPD Releases December Numbers, Fanboys Riot". 1UP.com. Archived from the original on 2007-09-27 . Retrieved 2008-04-01.