Notes:
Code is "sbbde3n"
Easter egg: during gameplay, pressing the plus/equals key (+ =) on your keyboard will make SpongeBob inflate onscreen. He will stay like this for the remainder of the current level or until a task from Squidward, Mr. Krabs or Sandy comes up (whichever happens first), and you won't be able to prevent Patrick from dropping a box with the 'M' key while SpongeBob is inflated. So, don't activate this easter egg if you want to always be able to use the 'M' key in-game.