Unlock Elite Beat Agents Credits: When you have beaten 'Jumpin Jack Flash' on 'Hard Rock!' difficulty the Elite Beat Agents Credits will become unlocked and able to be viewed at any time by going to the bottom right corner of the Gallery.
Unlock Bonus Episodes Complete the following tasks to unlock the corresponding bonus episodes. ALL 3 of the bonus episodes will become unlocked when one of the bonus episodes has been successfully unlocked on any difficulty setting.
Unlock Bonus Episode 1 - Cher - Believe: Advance to 4th Rank - Captain of Soul
Unlock Bonus Episode 2 - Jackson 5 - ABC: Advance to 6th Rank - King of the Beat
The secert is to not miss a single beat the multipler at the bottom left of the screen (or bottom right if you're a lefty and changed it in the settings) it resets to zero everytime you miss a beat and you can get the multiplyer up to x126 if you do the Makes No Difference lvl perfect on breezin(easy)