The Adventures of Jimmy Neutron: Boy Genius

Season 2 Episode 10

Sheen's Brain

Aired Weekdays 7:30 PM Mar 08, 2004 on Nickelodeon
out of 10
User Rating
54 votes

By Users

Episode Summary

After a failed history exam, Jimmy decides to help Sheen from getting left back in school by turning his invention, the Brain Drain Helmet, into a Brain Gain Helmet. However, his plan backfires when Sheen's I.Q. – as well as his head – inflates to a destructive degree. Invention: Brain Gain Helmetmoreless

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  • Great And Not at the Same Time...

    On one hand, I like the "epic" tone to the last half, with evil, smart Sheen. On the other, this evil, smart Sheen is NOT The Sheen most fans love. That sheen is crazy, wacky and lovable, and in this, he just wasn't. But I did like the plot of him being smart and evil, it's just... that's not the Sheen i like from the show as a whole. So, I think I will give this a B+ or so. It is a good episode and I wish i could score it higher, I just... can not do that for reasons abovemoreless
  • Very good episode.

    After a particularly hard history test, which even Jimmy found challenging, Sheen claims to have found it easy. Suddenly Ms Fowl calls him back, which Sheen thinks is to compliment his test. However, it turns out that Sheen has failed, and needs to ace the maths test to avoid being kept back.

    Sheen begs Jimmy to help him, saying that he cannot be held back AGAIN. Jimmy agrees, and him and Carl set to work. They try to get him to pay attention through negative-reinforcement, giving him a zap every time he is distracted. Despite this, he still cannot concentrate, and soon he seems doomed. Jimmy finally decides to turn his 'brain-drain' helmet into a 'brain-gain' one.

    It works well, and Sheen becomes a genius. He easily aces the maths test, getting all the answer correct. But his brain keeps growing, and when Jimmy asks him to get his intelligence sucked away, he uses some acquired telepathic powers to throw Jimmy off. Then he declares himself the supreme ruler, and takes Libby as his queen.moreless
  • Sheen's going to fail, so Jimmy tries to make him smarter... only for his plan to majorly backfire!

    This was a very interesting episode, and I really liked the concept used here. The whole thing reminded me of the anime movie Akira, what with one of the main characters gaining psychic powers and going insane. Or maybe that's just me. Anyway, this is one episode I really enjoyed.
  • Good episode. I liked how it focused on Sheen; we got to see a whole other side to him.

    When Sheen discovers that he has to take a math test that will count for the majority of his grade, he asks Jimmy to help him study for it. Sadly, Sheen has a short attention span, and Jimmy, who becomes frustrated with Sheen, tries to help him by using his brain drain helmet as a brain gain helmet. The next day, Sheen is noticeably smarter, but as time goes on, he becomes so arrogant that he starts to annoy everyone else. Eventually Sheen goes mad with 'brain power.' His intelligence grows so much that he has abilities such as telekinesis and shooting lightning from his head. Sheen starts to take over Retroville, and his friends' attempts to stop him are futile. Finally, when Sheen accidentally hurts Jimmy and Carl, he decides that friendship is the most important thing and puts on the brain drain helmet. Everything then returns to normal.

    I liked this episode because it focused on a character who doesn't get the spotlight all that often. Well, he sort of does, but not as much as Jimmy, Cindy, and sometimes Carl. I thought the plot was moderately creative, and it held my attention. In my opinion, this was one of the better episodes. The "problem" Jimmy has to solve using science is actually a common problem kids face: having trouble studying for tests (even though Sheen's problem was paying attention, but that's not the point) and not something random like picking up pants. Anyway, the bottom line is, this episode was entertaining! =)moreless
  • Jimmy tries to make Sheen a genius so he can pass a math exam and not get held back.

    This was a supurb episode of Jimmy Neutron. We finally get to see Jimmy get beat by a villian. Even though Sheen gave up his brain in the end to help save Jimmy and Carl. This episode also gave alot of hints toward a Sheen/Libby relationship. I have been shpping them since season 1 so this episode really held my interest.
Andrea Martin

Andrea Martin

Miss Winifred Fowl (voice)

Carolyn Lawrence

Carolyn Lawrence

Cynthia Aurora "Cindy" Vortex (voice)

Frank Welker

Frank Welker

Goddard (voice)

Recurring Role

Crystal Scales

Crystal Scales

Liberty Danielle "Libby" Folfax (voice)

Recurring Role

Rob Paulsen

Rob Paulsen

Carlton Ulysses Wheezer (voice)/Butch

Recurring Role

Trivia, Notes, Quotes and Allusions


  • TRIVIA (12)

  • QUOTES (13)

    • Carl (thinking): Baby llamas in the meadow - Baby llamas in the meadow - Baby llamas in the meadow - Oh, no! One of them's escaping! It's heading towards town! 'Town' rhymes with 'crown'! JIMMY AND I DISGUISED THE BRAIN-DRAIN HELMET AS A CROWN!
      Sheen: I heard that!

    • (Jimmy tries to convince Sheen to put the Brain Drain Helmet on)
      Jimmy: Believe me, Sheen. You don't want to be a genius. You have to help others with homework...
      Libby: You put the town in danger with your geeky inventions...
      Cindy: You're like a pain in the butt...
      Jimmy: (to Cindy) Nobody asked you!
      (Cindy steps back slowly)

    • Sheen: (describing Carl's scientifical features to the class) Carl Wheezer: 71% water, 27% Carbon, 2% mucus.
      (Carl sneezes)
      Sheen: 1% mucus.

    • Sheen: I heard that, Carl!
      Carl: I didn't say anything!
      Sheen: I heard your thoughts, Carl! You think I'm being an annoying doofus!

    • Jimmy: Sheen's IQ will keep growing to infinity!
      Carl: Wow... he'll be really good at board games.
      Jimmy: No, Carl, Sheen's brain is programmed to keep growing. If we don't get that Brain Drain Helmet on him soon, his head will explode.
      Carl:Aah! (disgusted) Eww.

    • Sheen: Libby, help me and I will give you the best robes and jewelry money can buy.
      Libby: You're crazy if you think I'm going to help you--did you say robes and jewelry?

    • (after big-brained Sheen flies out the Candy Bar's roof)
      Libby: Don't tell me that's just hormones.

    • Sheen: Now to pick my queen. I shall choose the fairest and most beautiful of the town's females.
      Miss Fowl: I'm afraid of commitment!
      Sheen: I didn't mean you!

    • Jimmy: Sheen, concentrate!
      Sheen: I am concentrating! ... Hey, look, TV! (runs over and watches TV)
      (Jimmy turns off the TV)
      Sheen: (confused) TV go dark.

    • Sheen: Miss Fowl, could I be excused?
      Miss Fowl: NO!
      Sheen: Could I not be unexcused?
      Miss Fowl: (confused) Y-y-y-yes....
      Sheen: Psych! (runs out, laughing)
      Jimmy: Miss Fowl, will you not let me not leave the classroom?
      Miss Fowl: No! ... (defeated) Yes.
      Jimmy: Thank you. (runs out)
      (Miss Fowl squawks, displeased)
      Carl: (to himself) Jimmy and Sheen need me. I can't let them down. (out loud) Miss Fowl! Can I never ever not be disexcused sometimes--
      Miss Fowl: PLANT IT!!
      Carl: 'K. (sits down)

    • Miss Fowl: Remember, children, don't think of this as a final exam ... think of it as 90% of your grade!

    • Carl: (reading from the math book) Tom has three pieces of bubble gum. If he trades all his gum to Ida for two raisins per piece, how many raisins will Tom have?
      Sheen: What sort of idiot would trade bubble gum for raisins?!
      Jimmy: That's not the point.
      Sheen: What is he, some kind of health nut?! If you ask me, Tom needs counseling. And what kind of name is Ida? Is it short for "I'd a prefered a different name"?!

    • Sheen: Well, how was I supposed to know UltraLord wasn't the father of our country? That's what it says in the UltraLord website!
      Jimmy: Wait, didn't you write the UltraLord website?
      Sheen: And your point is? (doubts for a second) (realizes) Oh.

  • NOTES (3)

  • ALLUSIONS (10)

    • Statue Throne: Appearance

      The statue that Sheen telepathically bends into his throne is seen in the previous episode (Love Potion #967/J) in Jimmy's lab during Jimmy and Cindy's date.

    • Video Game: Llama's Day Out

      The game "Llama's day Out" that Carl and Sheen were playing during the montage was the same game Carl and Sheen were playing "Hypno Birthday to You."

    • Music: "Riverstomp"

      The music that plays during the montange is the same music that Cindy and Libby did their Riverstomp dance to in "Battle of the Bands."

    • TV: Ultra Sheen

      When Jimmy is about to turn off the TV, you can see footage from the episode "Ultra Sheen."

    • Background: Past Characters

      When Carl and Jimmy are standing in front of the costume store, you can see the turkey-bride from "I Dream of Jimmy" and Mr. Giggles from "Hypno Birthday To You" as well as the UltraLord costume.

    • Sheen: (Shoots lightning bolts from his fingers while looking in a mirror.)

      This is an allusion to Annie Oakley, a very famous woman sharpshooter from Buffalo Bill's Wild West Show back in the 1800's; she invented a trick where she'd shoot a target with her rifle held backwards on her shoulder, looking in a mirror.

    • Sheen: Libby Folfax, c'mon down!

      On The Price Is Right, contestants are called by their first and last name, followed by "c'mon down!"

    • Sheen: Appearance & Powers

      Sheen's appearance with his enlarged brain and his big chair makes him look very similiar to Professor X from X-Men. In addition, Sheen's power of remote influencing and telepathy are reminiscient to Jean Grey from X-Men.

    • Sheen and Goddard: (playing chess)

      The chess that Sheen and Goddard were playing was 3-D chess, from Star Trek.

    • Title: Sheen's Brain

      "Sheen's Brain" is taken from the Star Trek episode "Spock's Brain."