Rock Band 2 is a 2008 music video game developed by Harmonix and distributed by MTV Games and Electronic Arts. The game, a sequel to Rock Band, has been released for the Xbox 360, PlayStation 3, Wii and PlayStation 2. Rock Band allows one to four players to simulate the playing of rock music by providing the players with peripherals modeled after musical instruments (a guitar peripheral for lead guitar and bass gameplay, a drum peripheral, and a microphone). The gameplay in Rock Band 2 is nearly identical to the original Rock Band, while also comparable to that in Guitar Hero.
The game disc features 84 songs, all of which are master recordings. In addition, the game supports existing downloadable content from Rock Band, as well as tracks which have been exported from other Rock Band game discs. Twenty additional tracks were released exclusively for Rock Band 2 as free downloadable content after the game was released. A redeemable code that allows the player access to these songs is included with new copies of the game, except for the Wii version, where no code is required.