SpongeBob and Patrick are visiting the Fry Cook Museum, where they see a greasy griddle with a golden spatula embedded in the grease. On it is a plaque, which says "Many have tried to pull this spatula out of this ancient grease, but all have failed. Larry the Lobster then attempted to pull it out but failed, SpongeBob then read, only a fry cook who's worthy of King Neptune himself can wield the golden spatula". SpongeBob, while posing for a photo, accidentally and effortlessly pulls it out, and King Neptune appears. He asks who pulled out the spatula, and everyone says SpongeBob. King Neptune refuses to believe this, and asks for proof. Patrick shows him the photograph he took, but Neptune still refuses to allow such a lowly being as SpongeBob to become the royal fry cook. He challenges SpongeBob to a patty-making competition. If SpongeBob wins, he will stay at Atlantis forever and become a god. If he loses, he has to give up fry-cooking forever. Patrick continually brags about SpongeBob's skills, and says that he could complete up to 500 challenges. He is repeatedly zapped by Neptune, until all that is left of him is a burnt mark on the floor. SpongeBob asks Neptune to revive Patrick, which he does (but with Patrick's face now on his butt). In the Poseidome, King Neptune makes 1000 burgers, in the time it takes SpongeBob to make just one, winning the challenge. However, when Neptune shares his patties with the audience, they find that they taste terrible. Neptune is angered by this, and asks why they would think that SpongeBob's would be any better. He tastes SpongeBob's patty, and finds it to be delicious. SpongeBob is declared the winner, but when he finds out that his friends can't come with him to Atlantis, he refuses to go, and instead arranges for King Neptune to be a trainee under SpongeBob at the Krusty Krab.
The man taking a shower in live-action sequence is actually Tom Kenny himself.
SpongeBob revealed he has two left hands.
This is the first episode to have computerized picture-shaking effects. They occur when Neptune laughs heartily, and when he body slams with Larry the Lobster. The second episode to use these effects is Welcome to the Chum Bucket.
This the first time Atlantis was shown, the second time was in Atlantis SquarePantis, where SpongeBob actually goes to Atlantis but looked pretty much different.
The SpongeBob SquarePants Movie references this episode when Patrick says that SpongeBob can do less than 10 days to get King Neptune's crown back, and get attacked by SpongeBob and Mr. Krabs. In this episode, Patrick does something similar. Patrick says Neptune isn't giving SpongeBob enough challenges, and Neptune zaps Patrick.
Plus, both Mr. Krabs and Patrick get revived at one point. Mr. Krabs is revived at the end of the movie, Patrick is revived after SpongeBob accepts Neptune's challenge.
Just like "I Was a Teenage Gary" and "The Paper", this episode is never broadcast as much on TV, because it is paired with a holiday episode. It has been broadcast more often as of late, though.
Neptune's many terrible-tasting burgers vs. Spongebob's single delicious one may be a reference to the saying "Haste makes waste."
The spatula in the grease is a parody of the Arthurian legend of Excalibur, or the sword in the stone, in which whoever pulls the sword from the stone would become the King of England.
The Poseidome is named after Poseidon, the Greek god of the sea (Neptune being the Roman).
In every other episode (with the exception of Your Shoe's Untied), the grill is right outside the window in the kitchen. In this episode, the grill is on a different wall.
Neptune appears to change size throughout the episode.
Unlike most of the characters, like SpongeBob, who have four fingers, Neptune has five fingers on each hand. However, he has four fingers in The Clash of Triton.
When Patrick takes the picture of SpongeBob holding the spatula, he has his mouth wide open and there are clouds above him. However, when Patrick shows Neptune the picture, SpongeBob is smiling and there are no clouds, just light.
When SpongeBob was showing Neptune his blue and red underwear, he lets go of the golden spatula. It was supposed to fall onto the ground, but it stays there instead.
When Neptune says SpongeBob needs to be "left handed" SpongeBob says he has 2 left hands, but later, his hands are normal. Plus, in "The Splinter" and "You Don't Know Sponge", he is revealed to be ambidextrous.