What Kind of Cheat codes are on Spongebob Truth or Square?

yes there is, one of them is 6647. To type it in go to the phone next to the chair in the living room and submit. then it'll give you a black and white game mode.

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Answer B:

there is also a cheat to unlock all of the costumes which is 2626. Also if u are low on coins u can go to all the flower pots and keep on pressing (A) until it stops giving you coins.