To help Baljeet be smarter, Phineas and Ferb create a helmet which boosts his IQ, but it goes out of control when he plots to move the Earth's atmosphere to the moon. Meanwhile, Doof tries to locate the key to the city with his Key Find-inator.
Tropes:
- Artistic License – History: Baljeet incorrectly states that playing cards originated from the Babylonians, but Ferb supposedly corrects him in that they actually originated in India. However, it turns out they are both wrong, as playing cards actually were invented in China.
- Bait-and-Switch: Baljeet comes with X-rays of his brain, one taken during the school year and one from now. Isabella points out they look similar.Baljeet: I know! But it took me three minutes to remember how to give myself a CAT scan! I am slipping!
- Continuity Nod: As in the previous episode, when we see the moon, the tallest skyscraper from "The Doof Side of the Moon" is still stuck there.
- Crazy-Prepared: With his brain stimulated, Baljeet is able to foresee when his friends would interfere with his attempt to transfer the Earth's atmosphere to the moon, such as putting a shocking glass dome around the controls of the brain booster.
- Decoy Getaway: Phineas, Ferb, Isabella and Buford put cardboard cutouts of themselves outside of Baljeet's invention while a recording of their voices plays on a record, while they dig underground to try to get away. They do it again with stuffed versions of themselves flying on jetpacks.
- Dramatic Thunder: Baljeet's atmosphere-transferring device ends up causing a storm while it's in use. Parodied on Doof's end, as he finds it perfect dramatic weather for his own (less dramatic) scheme.
- Expospeak Gag: Phineas explaining to Baljeet the intent of the invention of the day.Phineas: We've done a bit of cerebra-stimulatory haberdashery since you left.
Baljeet: Huh?
Buford: We made a hat for your brain, Slowy! (to Isabella) Boy. He is slippin'. - Five-Second Foreshadowing: The images of Phineas, Ferb, Isabella and Buford on Baljeet's screen aren't moving even though we hear them speak. A few seconds later, we see they are actually cardboard cutouts with their conversation actually a recording. Also at one point during the song, we see the gang on hang gliders flying over the tower, while Baljeet believes he is still attacking them on their jetpacks.
- For Science!: Baljeet's main reason for transferring Earth's atmosphere to the moon is so Earth-based space telescopes can see the galaxy better. When the obvious downsides are pointed out, he doesn't really care.Isabella: I was so looking forward to junior high.
- Genius Serum: The helmet Phineas and Ferb build boosts Baljeet's brainpower, but also seems to inhibit his morals and/or ability to recognize whether his ideas are good or not.
- Ironic Echo: "It pays to show up on time." "I'll get an alarm clock."
- Leaning on the Fourth Wall: Buford notes that the amount of stuff Phineas and Ferb have built over the summer exceed the number of days of summer.
- My God, What Have I Done?: Downplayed on Phineas' end, who simply shrugs and says, "Brain booster, in retrospect...not such a good idea." When Baljeet is freed from the brain booster helmet, he has this reaction now that his common sense was restored.
- Nobody Here but Us Statues: Perry hides in the antique shop next to a jade monkey making the same pose as him.
- Noodle Incident: Doof offhandedly mentions a time when he was locked in a milk can full of cockroaches.
- Shout-Out: Perry's lair entrance is a shot-for-shot parody of Lucy's first entrance into Narnia in The Chronicles of Narnia: The Lion, the Witch and the Wardrobe, right down to the music. Major Monogram explains the trees were left over from Christmas and the snow is from the AC being broken.
- Something Something Leonard Bernstein: When Doof is putting on his lab coat, he sings to himself, "Bow chicka bow wow, / That's what my baby says / Mow mow mow / And a something something..."
- Squick: In-universe. When Buford removes the helmet from Baljeet's head, he is disgusted by Baljeet's enlarged brain, which promptly shrinks.Baljeet: Something is different.
- Subverted Catchphrase: After Phineas declares he knows what he's going to do today, Buford simply asks, "And Perry?"Phineas: Who knows?
- That Poor Cat: Heard when Doof shoves his giant keychain offscreen.
- Too Clever by Half: The Cranius Maximus made Baljeet smart enough to create a device to transfer Earth's atmosphere to the moon, but seems to also leave him in such a euphoric state that it no longer registers to him that if he were to complete the transfer everyone would die of asphyxiation.
- Unwitting Instigator of Doom: Doof's Key Find-inator ends up temporarily stealing the key that would shut down Baljeet's atmosphere-transferring device, nearly dooming the world.
- Wedgie: Buford steals the Cranius Maximus and uses his new improved intelligence to make a giant wedgie machine. (Convenient in that Baljeet's machine somehow resembles a pair of underpants.)
