Enter the following passwords under the Password menu at the Main Menu:
Effect Password All stages, bosses and mini-games unlocked. Jellyfish, Ice Cream Monster, Thug, Jellyfish, Patrick, King Neptune Game beaten with all secret stages Neptune, Neptune, Patrick, Frogfish, SpongeBob, Neptune Level Select Chum Bucket Helmet, Chum Bucket Helmet, Ice-Cream Monster, Jellyfish, King Neptune, SpongeBob Shell City - Stage 4 Clam, SpongeBob, Robot With Dog Face, Clam, King Neptune, SpongeBob
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