Given the lack of the "as made famous" bit, it seems original recordings are provided by everybody's favorite contorted siblings and maritime birds. Curiously, Opposable Thumbs notes that Guitar Hero: Rocks the 80's will be "exclusive" to the PlayStation 2. Does that imply exclusivity for the in-store version, with the Xbox 360 receiving the expansion in downloadable form? Why would Activision limit the game's reach? After all, the pricing of Guitar Hero's online tracks makes it pretty clear that the publisher enjoys making money.