When Maggie does better than Lisa on an IQ test, Lisa becomes so despondent over no longer being the smart one that she tries to change her identity.

!! Tropes:
* AlwaysSomeoneBetter: Maggie to Lisa. [[spoiler:Later subverted when it turns out Maggie only appeared smarter because of clues and hints Lisa was giving her. Double subverted when Maggie starts playing the saxophone.]]
--> '''Marge''': All of my children are smart. Some are just smarter than the others.
--> ''Bart smiles ominously and puts his hand on Lisa's shoulder.''
--> '''Bart''': Welcome to ''the others!''
--> ''Lisa screams''.
* CallBack: To "Lisa's Substitute" when Marge gives Lisa a note that says "You are Lisa Simpson".
* DisappointedInYou: Marge and Homer when they see Lisa trying to sabotage Maggie's mental development. Homer in particular says this by playing with the Phonic Frog toy.
-->"I agree with your mother. You are a disappointment to [[RunningGag Huh-Oh-Muh-Eh-Er]].
* EurekaMoment: After Homer gets Phonic Frog to say "This is Huh-Oh-Muh-Eh-Er's doctor. He's too sick to work today", Homer momentarily laughs before he pauses in consideration and slyly excuses himself, no doubt to call Mr. Burns with the Phonic Frog.
* ReversePsychology: When Homer uses this to get Maggie to push the red button to get him, Marge, and Bart out of the animatronic human body. It doesn't work.
* ShoutOut: Lisa has a ''Film/WhateverHappenedToBabyJane'' inspired nightmare with her and Maggie in the characters' roles.
* TakeThat: When saying that Maggie is no longer allowed at the gifted childrens' school, the ''Creator/SimonCowell'' {{Expy}} says she's as common as an angry woman in an Ibsen play.
-->'''Homer''': Ha ha! Zing!
* ZanyScheme: [[ParodiedTrope Parodied]]. [[HeroOfAnotherStory Moe and Barney]] apparently have a ZanyScheme going that involves Moe pretending to be the Simpsons' butler and Barney [[{{Crossdresser}} pretending to be their maid]]. What this is meant to accomplish, [[RiddleForTheAges we're never told]]; they just beg the Simpson family to play along and promise to explain everything later.