Phineas and Ferb create trampolines in the sky thanks to an antigravity device, which gives Candace problems during a brunch with Jeremy's family. Meanwhile, Doof builds a Tell the Truth-inator to force the people of the Tri-State Area to blab their deepest secrets.

!! Tropes:

* AnswerCut: When Candace gets hit with the antigravity device, she says "There's gotta be a reverse switch!". The scene then cuts to Phineas and Ferb at the hardware store, asking the store owner where to find the reverse switches.
-->'''Mr. Haney''': Right behind ya, next to that guy buying self-destruct buttons.\\
'''Doofenshmirtz''': Ah, sweet! 50% off with coupon!
* BaitAndSwitch: When Candace gets hit by the anti-gravity device, it appears to set up that she is the one who will be hit by the Tell-the-Truth-inator. But just as she is about to spill the beans, the Inator hits ''Suzy'' instead.
* CallBack: When Doofenshmirtz fires the Tell the Truth-inator at a woman with a mirror, the beam gets reflected back at Doofenshmirtz, who says "Secretly, I'm very lonely", which was spoken by Bobbi Fabulous in "[[Recap/PhineasAndFerbDudeWereGettingTheBandBackTogether Dude, We're Getting The Band Back Together!]]" and Norm in "[[Recap/PhineasAndFerbGreeceLightning Greece Lightning]]".
* TheCameo: Blay'n and Clewn't, the Christmas elves from "[[WesternAnimation/PhineasAndFerbChristmasVacation Christmas Vacation]]" appear briefly during the song.
* CannotTellALie: The purpose of the Tell the Truth-inator.
* DudeNotFunny: When Doof is being chased by the Abe Lincoln robot, he tells Perry that it's about to "John Wilkes my Booth!... What? Too soon?"
* FunWithAcronyms: Monogram tells Perry that Doofenshmirtz was spotted with a grocery list reading "Eggs, Vitamins, Ice, and Leeks", which seems innocuous until one notices that the letters spell "EVIL".
* KarmaHoudiniWarranty: Suzy gets caught for ruining Candace's life for the first time, thanks to the Tell the Truth-inator.
* MagicSkirt: Lampshaded by Linda when Candace floats and her skirt does not flip downward.
-->'''Linda''': Good thing she's wearing her skort.
* MirrorsReflectEverything: Doof points his inator at a (offscreen) woman holding an "unusually large hand mirror". The ray of the inator bounces back to him causing him to admit, "Secretly, I'm very lonely."
* SandInMyEyes: Buford tears up when seeing Phineas bounce on the floating trampolines. But he then moves his tear to Baljeet to cover up.
* ShmuckBait: Doofenshmirtz leaves a recorded message for Perry telling him to try some food and to ''not'' try and destroy his new Inator. When Perry does just that, he gets his legs caught in a trap.
* ShoutOut:
** At the end of the song, Doof dresses like Marty [=McFly=] from the prom scene in ''Film/BackToTheFuture1''.
** When Robot Abe Lincoln tries to smash Doofenshmirtz with his fist, he yells "Honest Abe Lincoln Smash!", a nod to ComicBook/TheIncredibleHulk.
* SlowNo: When Suzy throws Candace's rare Ducky Momo plate, Candace does this.
* TurnedAgainstTheirMasters: The Tell-the-Truth-Inator features a robot version of Abraham Lincoln who's meant for decoration. When the robot gets hit on the head by a fast baseball, the robot comes to life and starts fighting ''against'' Doofenshmirtz.
* WhatHappenedToTheMouse: Sure Antigravity Maximus and the trampolines are gone, but whatever became of the personal antigravity remote Ferb used in the beginning?
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->''[[TheStinger Not too shabby!]]''