Rock Band 2"
Key:
ELF: SLUS_218.00
@1 NTSC

Enable Code (Must Be On)
903BDBE0 0C0EF6A0

*Misc Codes

Entire Band: 

Infinite Overdrive
2019D2BC 460C0000

Instrument Rock Meter: 

Never Fail
201B7140 46001840

Vocal Rock Meter: 

Never Fail
201B71B0 46001840

Strum to Gain & Never Lose
#Does not work for Vocalist.
201C47C8 0C07169A

*Note Multiplier:

!WARNING: Note Streak will Always Be 0 

INSTRUMENT NOTE STREAK CODES: 
Does not work for Vocalist.

1 Note Hit = 2 Notes
101C5A6C 00000002

1 Note Hit = 5 Notes
101C5A6C 00000005

1 Note Hit = 10 Notes
101C5A6C 0000000A

1 Note Hit = 15 Notes
101C5A6C 0000000F

Hacked For Rockband By FNG 
Ported to Rockband 2 By Skiller