Anilrgowda

Unlock All Levels:
Hold L2, X, Right, Left, Down, Triangle and hold down R1 for 10 seconds.

Cheats menu:
Have a saved game file from three compatible Nickodeon brand games on your memory card (Sponge Bob Squarepants: Light, Camera, Pants!, Tak: The Great Juju Challenge, etc.)
Concept art

Have a saved game file from two compatible Nickodeon brand games on your memory card (Sponge Bob Squarepants: Light, Camera, Pants!, Tak: The Great Juju Challenge, etc.)
Alternate costumes

Have a saved game file from a compatible Nickodeon brand game on your memory card (Sponge Bob Squarepants: Light, Camera, Pants!, Tak: The Great Juju Challenge, etc.)
Alternate character skins

Have "Spongebob Squarepants: Light, Camera, Pants!" game saves on your memory card to unlock these.

Defeating the Giant Fleebot:
When the Fleebot jumps to the ground, jump so you do not get hurt. Then, use Danny's Ghostly Wail until he jumps to heal. Jump to the drums and punch it so that he falls. If you still have energy, use Danny's Intergibilty to get health and energy orbs when possible. Then, continue to use Ghostly Wail, Continue doing this as long as possible and you should win.
Win Crocker fight

You will start on the lower level of the big wand and have a large area to work with. When the fight starts, Crocker will be shooting Wish Stars that follow you. Hopefully by this you point you have upgraded Danny Phantom's Ghostly Wail to the highest level, as it is the most effective against Crocker. If you are playing with another player, have them use Timmy Turner because of his long range attack. However, make sure that you are always pointing at Crocker or you will lock onto the energy poles. Once you lock on to Crocker with Danny, he stays locked on as long as you keep the attack held. It is also helpful to have another player there to keep the Grunts off your back. After you drain Crocker's health, use Timmy's Freeze Glove to freeze an energy pole and use Danny to punch it. If you are fast, you may be able to get two. When you destroy the four poles, you will go up a level and must destroy four more. By this time, Crocker will start using the energy draining Wand Bombs and the Toy Bomb which turns you into a Grunt if you are hit. The last level is smaller than the first two, and the energy poles are harder to reach.