Why aren't all my songs showing in Rock Band 1 and 2?

When you first start Rock Band or Rock Band 2, only a limited number of songs are available. Play through World Tour mode, either solo or with a band, to unlock the full setlist. Once unlocked, songs are available in Quick Play.

In Rock Band 2, you can also unlock songs by completing challenges.

You can unlock all songs immediately using the in-game option:
Note: You must enter the code very quickly (rapid input) for it to work.

1. Go to Extras.
2. Select Modify Game.
3. Enter the code quickly:
   • Red, Yellow, Blue, Red (2), Blue (2), Red, Yellow, Blue

You cannot save your tour progress while a game modifier is active.