Concept art
Go to the 3rd part of Bikini Bottom. Get 40,000 shiny objects. Go
to the movie theater and press R1 to go inside. Press X to see the
art.

All Spatulas
Press Start to game play at the Goo Lagoon and go to the Flying
Dutchman's Graveyard. Now, press R2, L1, Square, Triangle, which
will resume the game. Press Start again and press L1, R2, X,
Triangle(2) to get all spatulas.

Unlimited Golden Spatulas
Go to Goo Lagoon and find Bubble Buddy. Find The spatula then go
around the corner. Jump on the cloth and touch the "Thunder Tiki".
Run, jump off, land in the water, and repeat the process.

PS2 Cheats for Sponge Bob: Battle for Bikini Bottom

Sponge Bob: Battle for Bikini Bottom cheat codes

Sponge Bob: Battle for Bikini Bottom cheats