Rock Band 2 questions

[SAWYER]

1.How do you unlock songs?
2.Is there a cheat that will unlock them for free play?
3.What is the bar that fills up on the bottom when playing guitar?

 

[Kev]

1. The fastest way is to play the challenges in band world tour.
2. Yes
3. Overdrive meter, when flashing tilt the guitar to get a score multiplyer.
4. There is an official RB2 thread.

 

[cpacini]

Originally posted by: Sawyer
1.How do you unlock songs?
2.Is there a cheat that will unlock them for free play?
3.What is the bar that fills up on the bottom when playing guitar?

1. This should help you out : http://rockband.scorehero.com/.../viewtopic.php?t=14901

2. Codes here.