Phineas and Ferb invent an immersive video game and accidentally trap Candace inside while she's trying to get ready for her date with Jeremy. Meanwhile, Doofenshmirtz has created the Ballgowninator to make himself into the manliest man in the Tri-State Area.
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!!Tropes
* BadassAdorable: Once she gets the hang of the game, Candace plows right through it [[ImprobableWeaponUser using her hair dryer as a weapon]], and even defeats the Giant Buford boss (the first time) using ''[[BreakingTheFourthWall her own life bar]]''.
* BaitAndSwitch: Jeremey has just arrived to get Candace, who wonders how she is supposed to get ready in time. At the same time, Perry and Doof have just fired off a shot from the Ballgowninator. You'd think that the ray was about to hit Candace but instead, the ray then hits Phineas, Ferb and Isabella.
-->'''Ferb''': Apparently, do what ''we'' did.
* BigNo: One from Candace, coupled with SkywardScream, when Phineas and Ferb get stepped on by the video game boss. Then Phineas has one when the boss targets the seemingly-defenseless Isabella.
* BlindingCameraFlash: Phineas' eyes become swirly after Buford flashes the game console's camera at him.
* BondOneLiner: Delivered by Isabella after zapping Giant Buford back into the game.
-->'''Isabella:''' You know what they say, the bigger they are, the harder they de-pixelate!
* BrickJoke:
** Early on, Baljeet questions the educational value of the handheld "Jump and Duck". Buford responds by nearly punching him. Later, after Buford has been pummeled into the ground by his giant counterpart, Baljeet says he now sees the educational value.
--->'''Buford''': Y'know, eventually, I'm gettin' outta here.
** Major Monogram informs Agent P that while checking on Doof's internet activity, they gave away what he'll be getting for Christmas (a vase). Sure enough, in "WesternAnimation/PhineasAndFerbChristmasVacation", during the credits, Perry receives a vase from Doof, and he gets a disappointed look on his face. Not because he dislikes the present, but because Monogram already gave it away!
* CallForward: The baby boy Mrs. Doofenshmirtz gives birth to is Roger.
* ChekhovsGun: The camera-like digitizer was used by Isabella to defeat Giant Buford.
* ChorusGirls: Doof asks Perry if he is overexplaining his evil plan, and even says he has a whole musical number prepared with several girls waiting for his cue.
* DiedInYourArmsTonight: Phineas flickers out in Candace's arms before his and Ferb's DisneyDeath.
* DisneyDeath: Phineas and Ferb are struck fatally by Giant Buford and vanish out of existence... only to re-materialize seconds later because they only have four lives left.
* {{Duck}}: The game is called "Jump and Duck". Baljeet at first sees no educational value to the game, until Buford takes a swing at him and yells, "Duck!"
-->'''Buford''': Consider yourself educated!\\
'''Baljeet''': I stand corrected.
* ExactlyWhatItSaysOnTheTin: Phineas asks if there's any objective to "Jump and Duck" besides jumping and ducking. Buford's response? "It's called 'Jump and Duck', duh."
* FreudianExcuse: We learn the roots of the one-sided rivalry between Heinz and Roger Doofenshmirtz. When Doofenshmirtz's parents were expecting, they believed Roger would be a girl and Mrs. Doofenshmirtz spend months making dresses. When they instead had a second son, they were out of material and Heinz had to wear the same dresses, which made him the target of bullying from the other boys in Gimmelshtump.
* GameBreaker: InUniverse example with Candace's hair dryer.
* GenreBlind: Candace clearly has little to no experience with video games (a subtle ContinuityNod to her video-game date with Jeremy in "[[Recap/PhineasAndFerbInterviewWithAPlatypus Interview with a Platypus]]"). She rapidly drains her energy meter early on as she struggles to navigate the virtual world, and later believes her brothers have actually been killed when they lose a life.
* GorgeousGarmentGeneration: The central conceit of the Ballgowninator.
* HonorBeforeReason: When she's sucked into the game, Candace asks Phineas and Ferb if they can skip the game to the end to get her out. Thinking she's referring to cheat codes, Phineas says, "We don't roll like that."
* HypocriticalHeartwarming: Candace declares that nobody messes with her little brothers but her.
* IMeantToDoThat: While being dragged by the end of Perry's ballgown, Doofenshmirtz gets caught on the roof of a building and ends up flipping back into the hot air balloon. After a brief pause to figure out what just happened, he smiles and says, "Exactly as planned!".
* ImprobableWeaponUser: Candace defeats the video game enemies and obstacles by blasting them with her hair dryer. Later, when that falls off a cliff, she smacks giant Buford with her own health meter.
* InherentlyFunnyWord: "Cotillion".
* ModestyTowel: Candace is sucked into "Jump and Duck" while getting ready for her date with Jeremy, and wears one of these for most of the episode. It somehow manages to stay on through all of the chaos in the digital world.
* MythologyGag: The bit where Doof tells Perry he is too late, but then looks at his watch to check if it is 11:00 yet was originally in the pilot pitch for "[[Recap/PhineasAndFerbRollercoaster Rollercoaster]]".
* NinjaProp: As mentioned above, Candace smacks and subsequently defeats the Buford boss using her health meter.
* PacManFever: "Jump and Duck" seems to be some hybrid of this and ''Franchise/SuperMarioBros''.
* PreMortemOneLiner: Delivered by Isabella before using the Digitizer to defeat Giant Buford and send him back into the game.
-->'''Isabella:''' ''Smile.''
* RefugeeFromTVLand: The last level of the game brings the Flynn-Fletchers back to the real world...and giant Buford back with them.
* RunningGag: Yes, “cotillion” is a real word.
* SheCleansUpNicely: After having the curlers removed from her hair and getting a dress, Candace looks ''stunning''.
* TrappedInTVLand: Candace is literally sucked into the kids' giant video game. Later, her brothers follow her in to help her.
* ShoutOut: One of the castles in the game is drawn in the style of Creator/MCEscher, resembling his most famous work, ''Relativity''.
* VocalDissonance: Baljeet, Isabella, and Buford's singing voices in "Let's Go Digital" don't match their normal speaking voices, with all of their voices sung by P&F composer Danny Jacob.
* WingdingEyes: When Phineas gets stunned by the camera of Buford's game, his eyes become blue spirals for a moment.
* YouAreTooLate: Parodied in this exchange between Doofenshmirtz and Perry (which was originally written for "Rollercoaster"):
-->'''Doofenshmirtz:''' Ah, Perry the Platypus, you are too late! Wait, is it eleven o'clock yet?\\
''[[[{{Beat}} Doofenshmirtz checks his watch]]]''\\
'''Doofenshmirtz:'''' Now! Now you are too late.
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