"Krab Borg" is the 49th episode of SpongeBob SquarePants.


SpongeBob watches a scary robot movie when robots take over the world at night with Gary, and is terrified. He begins fearing a robot invasion, even asking Gary if he's a robot, and has a nightmare where robots are taking over the world and are chasing him. At work, he is very paranoid, and is under the impression that robots are "everywhere"(one turning out to actually a trolley full of sea potatoes, and another a red light that was actually the warning light for the fat). He later sees Mr. Krabs "speaking" in a robot language (actually humming to a song called "Electric Zoo" on the radio) and wearing batteries in his pocket (his radio broke and he was planning give the batteries to Pearl for her Christmas present), and suspects that he is a robot impostor. He then sees Mr. Krabs with metal pinchers (tongs he was holding an egg with) and glowing red eyes (he accidentally threw salt into his eyes while trying to salt the egg), which "confirms" his suspicions.


After collecting enough evidence, he convinces Squidward that Mr. Krabs is a robot. They go into his office, send Mr. Krabs into a panic and tie Mr. Krabs up, accusing him of being a robot and interrogating him on the location of the "real" Mr. Krabs. When he gives them no answers and becomes annoyed, they begin interrogating his machines, such as a blender, and destroying them, which greatly upsets Krabs, as the machines cost him money. When they come to the cash register, Mr. Krabs cries for it, which robots are incapable of doing, revealing that he isn't a robot. He also mentions laughing with it and loving it. Squidward then asks SpongeBob how did the movie end. SpongeBob reveals the end of the movie, in which the robots were all in their imagination, and runs off, leaving Squidward in trouble when Mr. Krabs becomes enraged.

Home video releases

  • SpongeBob SquarePants: The Seascape Capers
  • SpongeBob SquarePants: The Complete 3rd Season
  • SpongeBob SquarePants: The First 100 Episodes
  • Robot Invasion


  • KRUM, the radio station Mr. Krabs listens to, is the name of a real radio station.
  • The title is a pun on cyborg, or a being part human and part robot.
  • Squidward talks about his father in the past-tense, implying his father might be deceased. This is only time his father has been mentioned.
  • This is the second time there are mechanical designs on the title card.
  • In the beginning there was no cash register, but when Mr. Krabs goes to the bathroom, the cash register is back.
  • After SpongeBob and Squidward evacuated the customers, Mr. Krabs comes out of the bathroom and goes back into his office. He doesn't seem angry or surprised that there is no one in the Krusty Krab. In most episodes he get angry if he finds out there are no customers in the restaurant.
  • When Mr. Krabs said "You're going to interrogate my blender?" he placed "my" in the proper position of the sentence rather than saying "me" which violates English grammar. This is due to his accent.
  • When Mr. Krabs is leaving his office because of his burning eyes, Squidward and SpongeBob notice that Mr. Krabs has batteries in his back pocket, but Mr. Krabs is only at the door.
  • Mr. Krabs had batteries in his pocket (convincing them that he was a robot) but for batteries to work, they have to be hooked up on both positive and negitive sides. The batteries in his pocket were only hooked up on the negative side so that should have been a clue that he wasn't a robot.
  • The man running at the beginning of the episode is Dan Povenmire.
  • When Squidward takes a hammer and a saw out of a shed you can see a Krusty Krab calendar and it says that it was in September.
  • In the end, a "Help Wanted" sign is in the window of the Krusty Krab.
  • The song's name "Electric Zoo" is a possible reference to the Black Sabbath song "Electric Funeral".
  • Interestingly, in "Imitation Krabs", SpongeBob thinks a robot is Mr. Krabs. However, in this episode, it's the other way around - SpongeBob thinks Mr. Krabs is a robot.
  • In the Korean translation, Squidward's joke was "Why did the idiot die?" and the answer was "Because he forgot how to breathe".
  • Even though the DJ said the name of the song in the beginning, Mr. Krabs just used the sounds of the song to tell the DJ which song he wanted to hear again.
  • When Squidward and SpngeBob barge into Mr. Krabs' office, they beat up Mr. krabs. When they are beating him up, it shows a picture of the Krusty Krab. If you look closely of that picture of the Krusty Krab, there is a fish at the door.
  • When Mr. Krabs has salt in his eyes, one is bigger than the other but in the close up it's the same size.
  • Even though SpongeBob was equally guilty of capturing and detaining Mr. Krabs, he only yells at Squidward, though it was likely that because SpongeBob ran off, Mr. Krabs was unable to yell at him or Mr. Krabs was more angry at Squidward because he was the one who smashed all the expensive items belonging to Mr. Krabs.
  • Even though Mr. Krabs is a saltwater animal, his eyes are still burned by salt.
  • When SpongeBob calls for Mr. Krabs the fourth time and Mr. Krabs spills the salt in his eyes, the supposedly "hard-boiled" egg breaks and splatters like a raw egg.
  • If you look closely, you can see the costumers very close to the door and stopped while running away. That's when SpongeBob and Squidward are beating up Mr. Krabs and then tying him up.
  • When SpongeBob and Squidward tie Mr. Krabs to a chair, customers are visible through the window.
  • This is one of the few episodes where Squidward acts like SpongeBob or Patrick.

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