For the unlockables below, you have to get the specified score or higher to get the unlockable:

Code - Effect

Alternate Costume - Pummel Weed - 400,000
Alternate Costume - Rubble - 1,200,000
Animation Video - 200,000
Cheats Set #2 - 2,000,000
Cutscene Player - 1,600,000
Wotnot Book Video - 800,000