Activision is presumably operating under the assumption that gamers don't actually listen in on its postearnings conference calls, considering the number of "unofficial" game reveals that they contain. Most recently, Activision Publishing CEO and president Mike Griffith slipped word about Guitar Hero: Greatest Hits, which he said would compile full-band versions of songs released through previous installments in the franchise.

　　Today, Activision officially took the lid off of Guitar Hero: Greatest Hits, revealing that the game will arrive for the Xbox 360, PlayStation 3, PlayStation 2, and Wii in June. Beenox Studios--acquired by Activision in 2005--has been tasked with development duties on the game, which will encompass 48 master tracks reworked to accommodate vocals and drums in addition to guitar rifts. Songs will be pulled from Guitar Hero, Guitar Hero II, Guitar Hero Encore: Rocks the 80s, and Guitar Hero III: Legends of Rock.

　　Tracks thus far announced for the game include Alice in Chains' "Them Bones," Queen's "Killer Queen," Poison's "Nothin' But a Good Time," Rage Against the Machine's "Killing in the Name," Twisted Sister's "I Wanna Rock," Joan Jett and the Blackhearts' "I Love Rock N Roll," Heart's "Barracuda," and Dragonforce's "Through the Fire and Flames."

　　As was first seen in Guitar Hero World Tour, Greatest Hits will also include the Music Studio song-creation and sharing mode. The rhythm game will also include offline and online play modes for both single- and multiplayer rocking. Eight new venues will be packed into the game, including concert halls set in the Amazon, polar ice caps, and the Grand Canyon. Greatest Hits will also take a cue from Guitar Hero: Metallica by adding in the Expert+ difficulty mode, as well as World Tour's Beginner challenge level.

　　Pricing information has not yet been revealed.