Use the upgrade computer at the bottom of the Magwu Lair. Enter one of the following passwords at the "Cheat Code" screen to activate the corresponding cheat function:

Gadget meter always full

Enter Jimmy, Technus, SpongeBob, Tak, Technus as a password.

Coins attracted to you

Enter Tralok, Plankton, Danny, Plankton, Tak as a password.

Do not lose coins when knocked out

Enter Plankton, Jimmy, Beautiful Gorgeous, Jimmy, Plankton as a password.

Goo does not slow you down

Enter Danny, Danny, Danny, Technus, Technus as a password.

More time to do gadget combos

Enter SpongeBob, Beautiful Gorgeous, Danny, Plankton, Technus as a password.

SpongeBob concept art

Enter SpongeBob, SpongeBob, SpongeBob, SpongeBob, SpongeBob as a password to unlock the SpongeBob concept art.

Tak Temple Puzzle concept art

Enter Tak, Tralok, Tak, Tralok, Tak as a password to unlock the Tak Temple Puzzle concept art.