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Goo Goo Gas

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"Goo Goo Gas"
Goo Goo Gas title card.png
Season number: 5
Production code: 91a
First airing: USA July 19, 2009
Sister episode(s): Le Big Switch
Writer(s): Luke Brookshier
Tom King
Dani Michaeli
Creative director: Vincent Waller
Storyboard director: Luke Brookshier
Tom King
Animation director: Alan Smart
Supervising producer: Paul Tibbitt

“I'll turn Eugene Krabs into a powerless… baby.”

"Goo Goo Gas" is the first segment of the eleventh episode of season 5, and it is paired with "Le Big Switch." In this episode, Plankton creates a gas which turns adults into babies.



Plankton disguises as a pepper shaker to steal a Krabby Patty, only to get caught by Mr. Krabs due to his initials being on his disguise. At the Bikini Bottom Park, he overhears a mother talking about how defenseless her baby is, giving him an idea. He reels Mr. Krabs to a phone booth using pennies and uses goo goo gas to turn him into a baby.

He takes the key to the Krusty Krab from him, while Mr. Krabs crawls around until SpongeBob picks him up. Plankton asks him to help him with the lock, but as he's opening the restaurant, he accidentally reveals his plan and SpongeBob calls the cops, only for him to easily escape their handcuffs.

He complains about this to Karen, and she tells him to spray SpongeBob as well. He goes back to the Krusty Krab to do that, only to end up spraying Mr. Krabs back to normal. He tests the gas several times until he runs out, and Mr. Krabs kicks him out again.

Later, he sprays Mr. Krabs and SpongeBob again with the gas, only to end up making him old. This allows him to easily get away with the Krabby Patty, only for the two to knit a net and trap him in there, as well as use it as a piñata. Later, Plankton figures out the final ingredient, which is baby powder. He puts it in the gas and tests it out on Karen, and it works.

He once again goes back into the Krusty Krab and turns everyone in there into babies. He takes the formula from baby Krabs, who is sucking it. However, baby SpongeBob starts playing with his gas and it shoots up, spraying gas everywhere, including Plankton, who turns into a microscopic baby.


  • This is the last season 5 episode to premiere.
  • This is the only season 5 episode to premiere in 2009.