SpongeBob SquarePants


on ESB
If you were looking for the article about the character, then see Wormy (character).
Arrow Left
Arrow Right
Episode Information
Season №: 2
Episode №: 25a
Airdate: February 17, 2001
Sister episode(s): "Patty Hype"
Writer(s): Walt Dohrn
Paul Tibbitt
Merriwether Williams
Main: Walt Dohrn
Paul Tibbitt
Storyboard: Jim Schumann
Animation: Andrew Overtoom
Creative: Derek Drymon
See all credits for this episode.
Previous: "Imitation Krabs"
Next: "Patty Hype"
List of episodes

"Wormy" is a SpongeBob SquarePants episode from season two. In this episode, Patrick and SpongeBob take care of Sandy's pet caterpillar.



SpongeBob and Patrick are given the task of pet sitting Sandy's pets when she is out of town. One of Sandy's pets is a small monarch caterpillar named Wormy. SpongeBob and Pat quickly befriend the caterpillar and they enjoy a day of play together, however; their fun is disrupted; overnight, when SpongeBob and Patrick are not at the Treedome, Wormy goes through quick metamorphosis and becomes a monarch butterfly. When they come back in the morning, Patrick and SpongeBob think their new friend was eaten by the butterfly. They go berserk as they try to trap the "monster." Unfortunately, Wormy (now as a butterfly) manages to escape the Treedome while flying inside a bubble. SpongeBob and Patrick begin to spread news of the terrible monster throughout Bikini Bottom. Mass chaos erupts and the whole town becomes destroyed and deserted.

Sandy arrives at the shattered town in a few days. She immediately finds Wormy and places him inside a jar. All the townsfolk cheer and celebrate the capturing of the monster.

I can turn into a skyscraper!
This section is too short. You can help the Encyclopedia SpongeBobia by expanding it.



 ) Associated production music
 ) Original music
 ) SpongeBob music

  Twelfth Street Rag - Sage Guyton, Jeremy Wakefield [title card]
  Dreamy Hawaii - Terry Day [opening]
  Earl's Revenge - Sage Guyton, Jeremy Wakefield [Sandy's pets]
  Children 2 - Dave Hewson ["Hey, little fella."]
  Puka A - Sage Guyton, Jeremy Wakefield [playing hide, seek]
  That's What Friends Do - Peter Straus
  Youthful Days - Mike Sunderland ["Gee, SpongeBob, I don't want today to end ever."]
  Code 'Dead End' - Gregor F. Narholz [Wormy turning into a butterfly]
  On the Beach - Kapono Beamer ["Here I come, Wormy!"]
  House of Horror (2) - W. Merrick Farran ["I think something bad happened to Wormy."]
  Flight in Panic 1 - Gregor F. Narholz [SpongeBob and Patrick running to the door]
  Action Cut A - Gregor F. Narholz ["He's eaten Patrick!"]
  Footsteps of Horror - W. Merrick Farran [phone in jar/Patrick on a dinner plate]
  Death Trap - Gregor F. Narholz [SpongeBob traps the butterfly in a bubble]
  Bridgehead Alt. End - Sam Fonteyn ["Yeah!"]
  Lovely Scenery C - Mladen Franko ["...headed straight for the Krusty Krab!"]
  Hit and Run (2) - Sam Spence [secret entrance]
  Frankenstein's Niece A - Gregor F. Narholz [SpongeBob warns Krabs about the "monster"]
  A Sad Affair - Mike Sunderland [SpongeBob and Patrick crying]
  Frankenstein's Niece A - Gregor F. Narholz ["That's the monster?"]
  The Rake Hornpipe - Robert Alexander White ["Get a load of the scary monster."]
  Frankenstein's Niece A - Gregor F. Narholz [Squidward and Krabs scream]
  Harp Ding - Nicolas Carr [thumbs up]
  Gator - Steve Belfer [SpongeBob, Patrick warning everyone]
  Twelfth Street Rag - Sage Guyton, Jeremy Wakefield [everyone running from the butterfly]
  Bridgehead Alt. End - Sam Fonteyn [ending]



  • "Wormy" was ranked #57 during the Best Day Ever event on November 9–10, 2006.
  • As of August 11, 2015, The Internet Movie Database (IMDB) gives this episode a rating of 8.7/10 based on 185 ratings by users. users give this episode a 9/10 based on 160 votes.


  • This is the first episode to premiere in 2001.
  • Wormy is able to complete the full transformation from caterpillar to butterfly in just one night. In real life, this is impossible, and the length varies with different species if butterfly (in this case, Monarch butterflies, which is what Wormy was, spend ten to sixteen days in the chrysalis stage when changing into a butterfly.)
    • Sandy closely lampshades this by saying "you weren't supposed to change 'till I got back."
  • MY LEG: Fred runs out of his house after seeing a butterfly on the newscast.
  • The warning poster SpongeBob and Patrick put up depict a Viceroy butterfly, while Wormy is actually a Monarch butterfly. Viceroys belong to a different family group of butterflies, and are smaller and less common than the Monarchs. The reason why Viceroys resemble Monarchs is due to Müllerian mimicry, in which two separate species that share a certain predatory defense mechanism (in this case, being nasty-tasting to birds) also share very similar warning patterns.
  • This was the first episode to feature Patrick's new design, featuring thicker eyebrows, instead of the usual "Z" eyebrows.
  • This marks the 50th episode segment of the series.
  • When SpongeBob is standing on a treasure chest, warning people about the butterfly, the word "Dogs" can be seen on a building in the background.
  • When SpongeBob is saying "We did it, Patrick!" during the destruction scene, a meteor can be seen flying down until it falls off screen in the background a few seconds later, a flash can be seen in the background, referencing the landing explosion.
  • This is the first episode to feature a short-cut to the Krusty Krab. This is shown again in "Born to Be Wild."
  • The close up of the butterfly is actually the head of a buzzing horse-fly.
  • This episode was banned in some countries, due to the butterfly close-up frightening young viewers.[citation needed]
  • At the beginning Patrick whistles, and SpongeBob says: "I didn't know you spoke bird!," and Patrick says "No, that's Italian." In the Italian version, he says that it is Spanish.
  • The Krusty Krab cash register boat is drivable as seen in this episode.

Cultural references


  • Though Wormy eventually pupates into a Monarch Butterfly, he looks nothing like a Monarch caterpillar.
  • At the part where SpongeBob and Patrick run away from Wormy along with everyone else, the town is destroyed. But when they reach the stoplight while being chased, the town is perfectly fine.
  • Nancy's dress changes from yellow to gray in one point where the Bikini Bottomites are being chased by Wormy as butterfly.
  • When SpongeBob begs Wormy not to eat him, his mouth did not sync right.
  • When Patrick warns everyone about the monster, his mouth does not sync right.
  • After Mr. Krabs and Squidward run away from Wormy, two pairs of underwear can be seen, but Squidward does not wear pants or underwear.
  • When Mr. Krabs asks "What's the meaning of this, SpongeBob?!," Squidward's hat is missing.

    Patrick without eyes, SpongeBob without his buck teeth and floating, and Sandy's right arm and badge is gone.

  • When Patrick is with the people holding up SpongeBob and Sandy, he does not have eyebrows. In another shot during the same scene, he does not have eyes. Also, SpongeBob's buck teeth and Sandy's left arm disappear for a split second. And he is floating and Sandy's badge is also gone.
  • When the final shot of Sandy is shown before she leaves the treedome, she is wearing her spacesuit and helmet, but in the previous shots, she was in her bra and bikini.
  • Fred's eyes turn gray while carrying Sandy and SpongeBob at the end.
  • In the scene after the fish citizen that watched the newscast jumped through his wall, Billy is flying around.
  • After SpongeBob and Patrick finally lead the butterfly outside, they only open the first door. There are two doors, so the butterfly should have stayed between them, instead of making its way outside.
  • SpongeBob should not have been able to blow the bubble, which captured Wormy, as he was wearing his helmet on.

Start a Discussion Discussions about Wormy

  • Creepist SpongeBob Episode

    25 messages
    • SamHalls2015 wrote:Spongebsp wrote: SamHalls2015 wrote: Here is my top 10 creepiest SpongeBob episodes. 10: Boating Buddies 9: Dumped ...
    • SamHalls2015 wrote:Spongebsp wrote: SamHalls2015 wrote: Here is my top 10 creepiest SpongeBob episodes. 10: Boating Buddies 9: Dumped ...
  • Life Cycle

    6 messages
    • The episode is banned in some countries for the butterfly scenes, but if you mean when Wormy hatched out of the cocoon that wasn't scary.
    • That scene was creepy for me and I had nightmares for weeks. Just me. I am not sure about the others though. This episode still haunts me to t...

Wikia Spotlight

Random Wiki