Guitar Hero: Greatest Hits for WiiOn: Wii, Xbox 360, PS3, PS2
Features 48 tracks from previous GH titles.
DJ Hero developer FreeStyleGames allegedly behind this year's music game.
Future music games expected to sell more than the previous generation.
Import tracks from Guitar Hero World Tour and Greatest Hits.
Gamers will be able to pay a fee to imports tracks from World Tour and Smash Hits.