cher
The secret character code in SpongeBob Monopoly is "SpongeStar" but you do have to achieve all of the bonus cards.
BlackJack.
dont listen to him
Monopoly Spongebob SquarepantsEdition unlock all the bonus card then, it will show you the code.
The code is spongestar, but you have to get all twelve bonus cards to unlock the secret character
cher
Spongestar but it doesn't work. I've got all bonus cards and I wasn't told about the password.
The secret code in SpongeBob Monopoly is "SpongeStar" but you can't type it in until you achieve all of the bonus cards first. Once you achieve all of the bonus cards, you are able to type it in then.
KING
Isn't it the Plankton Coin thing? I could be wrong.
spongestar
boring