Powerpuff Girls: Paint The Townsville Green Cheat Codes for Gameboy

Power-up
Select the "Enter Secrets" option at the main menu, then enter "EBSTORE" as a code.

The Utonium Chateau level
Select the "Enter Secrets" option at the main menu, then enter "BEATBRICK" as a code to defeat the red Rowdyruff Boy Brick and gain access to the girls' and Professor's suburban home.