Instructions
Turn on the PlayStation 2, and insert the "Guitar Hero: World Tour" game disc. Plug the guitar controller into the PlayStation 2 controller slot.
Start the game in any difficulty level. You are presented with several songs from which to choose.
Play and complete the songs that are available to you. Upon completing these songs, the next set unlocks. Continue playing through the songs until "Beat It" unlocks.
Enter the "Unlock All Songs" code if you do not want to play though other songs to get "Beat It." Go to the "Options" menu and choose "Cheats." On the guitar controller, press the "Blue" button twice, then the "Red" and "Green" buttons. Push "Green," "Blue," "Blue" and "Yellow." All songs, including "Beat It," are now playable.