SpongeBob's Big Birthday Blowout

"SpongeBob's Big Birthday Blowout" is a SpongeBob SquarePants episode from Season 12. In this episode, SpongeBob and Patrick tour the surface world, while the rest of Bikini Bottom prepares a surprise party for SpongeBob.

Plot
In Encino, California, Patchy the Pirate is attempting to start his boat to get to Bikini Bottom to give SpongeBob his birthday present. Potty the Parrot points out that the boat is out of fuel, so Patchy decides to walk to his destination instead. Down in Bikini Bottom, Gary the Snail awakens SpongeBob and gifts him a special jellyfish net. Meanwhile, at Patrick's rock, Sandy Cheeks has gathered Patrick, Mr. Krabs, Mrs. Puff, Sheldon Plankton, Bubble Bass, and an old man to go over the plans for SpongeBob's surprise birthday party. Patrick is tasked with taking SpongeBob on a sightseeing tour while the rest decorate SpongeBob's house for his party. Patrick walks to SpongeBob's house while Plankton hides in his pocket so he can grab SpongeBob's keys. The aquarium-style bus for the tour arrives on schedule and both SpongeBob and Patrick get onboard.

The bus's tour guide, Rube, announces that they will be visiting the surface land. They arrive on land with a little help from the French Narrator's submarine. When they arrive on the beach, the tour guide gives incorrect information about the creatures who inhabit the area. They soon come to a bean-sponsored party hosted by a wild mascot (Kel Mitchell).

At SpongeBob's house, the others, now joined by Squidward Tentacles, are arguing over the party's theme. Sandy, the peacekeeper, decides they each should divide the house into each of their separate themes, with Mr. Krabs coming up with a Krusty Krab-themed party, Mrs. Puff with a boating school theme, Plankton with a torture theme, Bubble Bass with a Mermaid Man theme, Squidward with a theme based around himself, and Sandy with a karate theme. The party goes into full swing, but chaos soon approaches and begins to tear SpongeBob's house apart.[13] Back on the surface, the tour makes stops at a park (narrowly avoiding an on-course collision with Patchy and Potty) and an office building. The office workers leave for a lunch break, leading the tourists to the Trusty Slab restaurant.

Inside the restaurant, the tourists encounter their human counterparts, including an indecisive customer (played by Patrick's voice actor Bill Fagerbakke), the grumpy cashier Manward (played by Squidward's voice actor Rodger Bumpass), the penny-pinching boss Mr. Slabs (played by Mr. Krabs' voice actor Clancy Brown), an impatient astronaut (played by Sandy's voice actress Carolyn Lawrence), and the energetic fry cook JimBob (played by SpongeBob's voice actor Tom Kenny).[14] JimBob mistakes SpongeBob for some cheese for his Slabby Patty and puts him into a burger. Patrick rescues him, leaving the Slabby Patty without a patty. Shortly after, the restaurant is robbed by a business competitor named Charleston (played by Plankton's voice actor Mr. Lawrence). He is foiled by Mr. Slabs and sent flying toward the dumpster. The tourists leave and encounter a pet store that sells fish. A cheerful lady (played by Pearl's voice actress Lori Alan) mistakes the bus for an aquarium and takes it inside, where she puts it on the shelf.

Things appear to be bleak, but Patrick comes up with the idea to push the bus over the side. They escape the store, taking some of the store's fish with them. As they get back to the beach, the bus accidentally runs over Hasselhoff's foot. Hasselhoff blames Patchy, who uses the bean-sponsored contest's bean cannon to reach Bikini Atoll. Once they reach the ocean, they free the fish from the aquarium and they return to Bikini Bottom. Upon exiting the bus, SpongeBob asks Rube for the birthday song that he asked throughout the special. Before they can sing, Rube leans forward and accidentally hits the pedal, and the bus drives away. Patrick opens SpongeBob's door to see that the house is a mess, but he is oblivious to this. SpongeBob finally arrives at his surprise party to find everyone fast asleep.

Just then, a giant box falls from out of the sky. SpongeBob opens it and finds Patchy's disembodied head. Patchy leads the cast in a birthday-themed version of the show's theme song with a montage of celebrities wishing SpongeBob a happy birthday including David Hasselhoff, Kel Mitchell, JoJo Siwa, Tiffany Haddish, Thomas F. Wilson, Sigourney Weaver, Heidi Klum, Kal Penn, Lana Condor (replaced by John Goodman in alternate airings), Jason Sudeikis, RuPaul, Vernon Davis, Rob Gronkowski, the cast of the SpongeBob SquarePants musical, and Gilbert Gottfried.

As the song finishes, Patrick asks SpongeBob how old he is, only for SpongeBob to be interrupted by TV static with SpongeBob blowing his nose like a flute (as he did in the series' opening sequence).