History WesternAnimation / AdventureTimeFionnaAndCake

Not to be confused with ''ComicBook/AdventureTimeWithFionnaAndCake'', a comic miniseries which focuses on Fionna and Cake's main adventures.

Not to be confused with ''ComicBook/AdventureTimeWithFionnaAndCake'', a comic miniseries with no relation to the show.

* DeconstructedTrope: Of LivingOutAChildhoodDream. Since the start of this series, Fionna always dreamed of magical adventures ([[spoiler: which in part, they are residual memories of her time when her universe was filled with magic, until Simon was free from the Ice Crown’s influence for good]]), where she could beat up the bad guys and saving mysterious, handsome princes. She finally got a taste of it in Episode 6, [[spoiler: only for her fantasy to quite literally melt away right in front of her eyes, as she killed the Winter King with a kiss, while she accidentally stripped the magic of his crown by touching it. Worst still, she learned that the Winter King used a spell to send the curse of madness of the Ice Crown on PB of this universe 100 years ago, turning her into the Candy Queen, meaning that Fionna slaughtered innocent candy people to save the true BigBad of this universe the whole time. Fionna acknowledged it and she started to question if the multiverse was hurt because of her mere existence as a being from an “unauthorized” universe]].

** Looking throughout the series reveals a ton of extra details that a regular viewer might miss the first time watching. Examples of this would include how the newspaper Queenie is reading on the bus reveals the city's name to be "Uhm", multiple advertisements on the bus to businesses, most of which are also run by Queenie as well as Marshall Lee's mother such as a Vacuum company, the strange symmetry of objects in Fionna's city, how Dirt Beer Guy also has a branch of the candy tavern in the human city called "Dirt Beer Guy's Up-Ton express", Scarab's list showing multiple Cosmic Criminals that escaped from the Citadel at the beginning of Season 6 of the original show including Martin Mertins whose mugshot shows him FlippingTheBird, the very last second of Ice King's tape in "Jerry" showing him turn into a skeleton and that the Ice Crown was still inside his drum with Fionna seemingly noticing it.

** While it’s perfectly normal to wish for something more in your life, you should also appreciate what you have now and make the best of it, instead of dwelling on something (or someone) you have lost.

* "Never give up on your life because you think someone else matters more".
* While it’s perfectly normal to wish for something more in your life, you should also appreciate what you have now and make the best of it, instead of dwelling on something (or someone) you have lost.

* AnAesop: "Never give up on your life because you think someone else matters more".

* AvoidTheDreadedGRating: ''Adventure Time'' is already known for avoiding this trope since its inception, but ''Fionna and Cake'' pushes it further by introducing graphic violence, swearing, and partial female nudity.

* EarnYourHappyEnding: Although it's slight [[BittersweetEnding bittersweet]], [[spoiler:in the end Fionna and Cake's world is canonized, saving it from Scarab's attempts to erase it, Fionna and Cake rebuild their lives there, and Simon manages to start moving on and gets some therapy for his trauma.]]

%%no trope slashing; choose one trope* DeusExMachina[=/=]DiabolusExMachina: [[spoiler:Scarab has problems convincing anyone to help him continue his mission to expose Prismo, since many of the other cosmic beings get along much better with the current Wishmaster than with him. At one point, as several of these prepare to attack and stop him, his and Prismo's unseen boss pulls him out and puts him in a perfect position to attack Simon in the Extinct World.]]

* BrainwashResidue: Though no brainwashing was involved, no one in [[spoiler:Fionna and Cake's world remember what the world was like before the magic disappeared, yet Cake retained a large degree of her intelligence despite being reduced to a housecat]].

* InSpiteOfANail: Even in the alternate GenderFlipped universe where everyone is human, Finn's equivalent ended up dating and breaking up with Flame Princess' equivalent.

* MirrorCharacter: [[spoiler:Casper and Nova are very, very similar to Simon and Betty, most notably the toxic AllGiveAndNoTake tone coming from Nova's constant sacrifices and Casper's failure to do anything to support her. This helps Simon realize that he took a lot away from Betty without giving much back in return. For added similarity, the two are chasing an artifact identical to the Ice Crown, and one of the two options at the very end after Simon takes all of Casper's choices is drinking a magic potion to save Nova, but forget her completely, not unlike how Simon forgot everything about his past life as the Ice King despite needing to use the crown's powers to protect a young Marceline.]]

** At one point, the protagonists end up in a universe were Ooo is an empty, desolate wasteland and none of its colourful inhabitants are present (except [=BMO=]). It turns out that this is [[spoiler:a universe where the Lich's wish for the complete extinction of all life succeeded. Of course, now that everything's dead, the Lich [[AndThenWhat has no further purpose and actually gotten depressed]].]]

** [[spoiler:Shermy and Beth are currently in the middle of a revolution to overthrow Gibbon as ruler of the Pup Kingdom and have gotten halfway through their plan. The fact that Shermy doesn't have the Finn sword yet implies that this happened before he and Beth found it at the end of "Come Along With Me" and are currently still fighting against Gibbon's forces.]]

* LastEpisodeNewCharacter: In "Casper & Nova", we are introduced to the titular characters near the end of the episode. [[Spoiler:During "Cheers", both are SuddenlyVoiced and shown in a more realistic way than as holograms in a holobook. While playing with the book, Simon in Shermy's body begins to realize that Casper and Nova are MirrorCharacter versions of his relationship with Betty and how she constantly sacrificed everything for him during their relationship instead of helping her with her own goals.]]

** [[spoiler:Shermy and Beth are currently in the middle of a revolution to overthrow Gibbon as ruler of the Pup Kingdom and have gotten halfway through their plan.]]

* BittersweetEnding: [[spoiler: While Fionna doesn't get to be a hero like she wanted, she learns to appreciate her mundane world for its own merits, while the mundane world is now infused with magic to become a bit more like Ooo from the adventure, including Cake being keeping her powers and speech, showing middle ground between a "Mundane" life and a "Magical" one. Meanwhile, not only does Simon ''still'' [[DidNotGetTheGirl lose Betty in the end]], but she shows him that their relationship, for all its merits, [[AllTakeAndNoGive was always too one-sided in his favor]], ending up like it did because Betty always had to sacrifice something for Simon. But she also tells him she's made peace with her choices, and gives him the strength to do the same, finally move on, and make the most of his new life rather than dwelling on the past]].

** Vampire World is one where Simon died in the Mushroom War, leaving a young Marceline to be raised the Vampire King as his right hand henchman, known as The Star. The Vampire King found the Ice Crown and used it to blot out the sun, plunging the world into an eternal darkness, so all the vampires could thrive without being hurt by sunlight.

* CharacterTitle: Every individual episode is titled after a character that has a big role in it. This also goes for the title of the miniseries, which focuses on two of the main characters.

* BittersweetEnding: [[spoiler: While Fionna doesn't get to be a hero like she wanted, she learns to appreciate her mundane world for its own merits, while the mundane world is now infused with magic to become a bit more like Ooo from the adventure, including Cake being keeping her powers and speech, showing middle ground between a "Mundane" life and a "Magical" one. Meanwhile, not only does Simon ''still'' [[DidNotGetTheGirl lose Betty in the end]], but she shows him that their relationship, for all its merits, [[AllGiveAndNoTakeRelationship was always too one-sided in his favor]], ending up like it did because Betty always had to sacrifice something for Simon. But she also tells him she's made peace with her choices, and gives him the strength to do the same, finally move on, and make the most of his new life rather than dwelling on the past]].

** [[spoiler:Shermy and Beth are currently in the middle of a revolution to overthrow Gibbon as ruled of the Pup Kingdom and have gotten halfway through their plan.]]