Not Possible: rockband 2 xbox360 demo ?

hi thanks for taking the time to read this i recently got to play a rock band 2 demo at gamestop and i was confused because i can't find it anywhere else i can't afford the game or the band stuff so i basicly played that demo abbout fifty time in gamestop lol does anyone know where i can get the demo pleaseeeeeeee i would be so grateful it had peace sales by megadeth chopsuey by system of a down and also keep them separated by the offspring i cant remember the rest of the songs also there was a guitar hero world tour one too either one would be fine but i would like both thx also there was a rockband 1 demo for xbox360 from oxm magazine can't find that either

 

This is another game I don’t think the demo was ever on Xbox Live for unfortunately. I’ve check a few of my sources and can’t find a demo of the game anywhere.

 

thanks for looking i appreciate it