Patchy organizes a house party, and all the guests come except for SpongeBob himself, who can't understand what's written on the invitation because it was destroyed by the water. So they throw it in fire. Potty invites The Birdbrains, a band consisting of birds. Patchy attempts to remedy the music situation by performing his own (horrible) song, and Potty tells Patchy that it's time for his flute solo. Patchy starts playing, but soon realizes that he plays a fife, not a flute, and that the "flute" is actually dynamite. It explodes, leaving only his head intact. The Birdbrains then have the opportunity to play music, singing "Underwater Sun." After they finish, Patchy returns to end the show, with a barrel for a body being kissed by girl parrots. While shopping at the Barg 'N-Mart, SpongeBob finds a "Plan Your Own Party Kit," and decides to throw a party using the kit. Despite the kit advising to invite "only your closest friends", SpongeBob invites nearly everyone in Bikini Bottom. When all his guests arrive and start partying, SpongeBob stops them from doing what they want and forces them to follow a very elaborate and specific schedule of events that he planned. These include discussion cards and reading newspaper comics to his guests. SpongeBob accidentally locks himself out of his house because he got the wrong newspaper, allowing the guests to have fun. After continually trying to get into his house using different methods, he grabs a pickax and attempts to break in while dressed as a bunny. The police find him and place him under arrest, but when SpongeBob explains everything, they don't arrest him. However, the police attempts to make him miss the party by arresting him for not inviting them. When he gets back, he is depressed because his party failed, until Patrick comes and tells him that it was the greatest party all of them has ever been to, and that he should do exactly the same thing next weekend. SpongeBob smiles gladly and becomes proud and finds Gary wearing a lamp. The episode ends as SpongeBob turns off the lamp.
In Hebrew, this episode is titled המסיבה של בובספוג (SpongeBob's Party)
In Poland, this episode titled Imprezoporty (Party Pants)
The fine print for "Patchy's Dance Tips" video offer reads: "It is unlawful to blah blah blah. In the event of blah blah blah the said person blah blah blah. Will who there for blah will blah and it shall be the soul responsibility to blah blah when in the case of blah blah blah. In so there to, henceforth blah will be blah."
SpongeBob's attempts to get back in his house:
Knocking on the door, Patrick thinks it was the beat to the song.
Phoning the house, Patrick does open the door, but slams it in SpongeBob's face.
Climbing up the house and enter through the window, Larry shuts the window, which SpongeBob breaks his fingers.
Looking through the window, Mrs. Puff think it's a painting and turns it backwards, pushing SpongeBob from the window.
Tunnel his way in, a line of people doing the bunny-hop step on SpongeBob and shooting him back outside.
Break the door down with a pickaxe, the police come and arrest him for not inviting them to his party.
SpongeBob's scheduled events:
8:00-8:05: Guests arrive
8:05-8:15: Opening remarks & general discussion
8:15-8:27: Craft corner & name tag distribution
8:27-8:37: Cracker eating/tongue twister contest
8:37-8:52: Read aloud from the newspaper comics
8:52-9:03: Eat cake
9:07-9:20: Running charades
9:20-9:38: Finger puppet theater
9:38-9:57: Charity apple bob
9:57-10:00: Electric jitterbug dance marathon (Ladies choice)
10:00-10:09: Dance your pants off
10:09-10:41: Knock-knock jokes
10:41-10:47: Squidward makes light conversation with Mr. Krabs
SpongeBob's welcome mat is not present in any scene except the one where he pulls a key from it.
SpongeBob invites 177 guests, although only 11 are actually shown at the party.
Scooter: Which came first, the oyster or the pearl?
Lady: Discuss the philosophical nature of irony.
Plankton: Where are you from?
Patrick: Nod politely
This episode was not aired after its initial showing for over 3 years. Starting in 2007, the episode was aired again on Nickelodeon.
This is the first episode to have two title cards.
Before "Party Pooper Pants," breaking the fourth wall, Patchy asks if he wants us to watch the cartoon now. The camera then goes up and down supposedly nodding.
The fish with glasses said he was moving but was later seen at the party.
SpongeBob's couch is red instead of green.
SpongeBob's watch says 3:00, not 8:00.
Patchy's dance map is similar to the title card of "Slimy Dancing."
One of the albums said Sing Alongs.
When Patchy crashed into the light post his jacket's red.
Running Gag: SpongeBob getting hurt attempting to get in.
This episode takes place before "Bubble Buddy" because Scooter dies in that episode and is alive in this episode.
This episode originally had the regular lowercase captioning (used from 2000 to 2006) on both the TV broadcasts and the DVDs. On recent broadcasts of this episode, though, the captioning has been updated to the current uppercase captioning for unknown reasons. So far, this is the only episode to have its closed captioning updated.
At the end of the episode when Patrick closed the door, the door handle was the same color as the door but in the next scene it was a gold handle.
The cake had blue frosting, but in a later scene it had pink frosting, and in another scene it had blue frosting.
In the scene where SpongeBob reads comics to everybody, his couch is blue and red.
Tom's eyes are different in this episode, but in a later scene they are back to normal, and in another scene they are different.
In one scene Gary's mouth did not move when he said, "Meow."
SpongeBob remembered he has a reserve key under the doormat, but the doormat was not seen before or after this scene.
In multiple parts of the music video for Underwater Sun, SpongeBob only has one tooth.
Pearl should have fell into the hole SpongeBob dug as well.
After SpongeBob is pushed out of the hole he dug, it disappears.
There are multiple speech errors in the Indonesia version:
Scooter says, "Who came first, can go with Pearl (Krabs). You can go with Pearl!" instead of "Who came first, the oyster or the pearl? You take the side of pearl."
Mr. Krabs says, "Next year" instead of "Nice try, Plankton."
"2 minutes late" instead of "22 minutes late"
"Handshake time" instead of "Finger puppet theater"
"I didn't even eat my cake" instead of "Is it too late to offer you some punch?"
"You must sleep" instead of "You better call an astronomer"
"Your eyes are still good, right?" instead of "Someone's at the door!"
Patchy says "No" when he replies to the Birdbrains instead of "Yes."
When Patchy asks about Rusty Hinges to Potty, he answers "Rusty died 30 years ago" instead of "They broke up years ago."
When SpongeBob was reading his schedule, Gary's shell doesn't have the red swirl.
According to Minnie Mermaid at Patchy's party, if she wasn't in the paddling pool, she will die, but when Patchy was blown up by the stick of dynamite, Minnie Mermaid wasn't in the paddling pool.
The exterior of Patchy's home has been flipped from it's appearance in "Christmas Who?"
SpongeBob says It's twenty seconds after eight six seconds after he says it's ten seconds after eight.