History Fridge / AdventureTime

* Princess Bubblegum didn't leave behind the formula for candy life- she left behind the formula for [[AmbiguousDisorder NEUROATYPICAL]] candy life! This is why Lemongrab 2 has the same "disorder" as Lemongrab, and why all of the Lemon People seem to be affected, as well. If Princess Bubblegum had left behind the formula for creating "normal" candy people, then the Lemon People wouldn't have all been so "[[AmbiguousDisorder special]]."

* The meaning behind the title "Holly Jolly Secrets". You've gotta admit, [[http://www.formspring.me/MrMuto/q/269641347344897048 Adam Muto states a damn good case.]]

Season 5’s premiere’s AlternateUniverse Finn’s [[spoiler:last name]] is [[spoiler:Mertens]]. Season 6’s premiere reveals that [[spoiler:Finn’s father’s name is Martin]].

* Recent revelations about [[spoiler: the Lich's past]] only get more horrific the more you think about them. [[spoiler: He is implied to have been a human who was [[NuclearMutant mutated]] by the [[AtomicHate Mushroom Bomb]] into an [[TheDreaded immensely powerful]] OmnicidalManiac.]] So he could have just been some [[InnocentBystander poor schmuck]] who happened to be in the wrong place at the wrong time, who probably had friends and family and a whole life, and got [[FaceMonsterTurn turned into a monster]] ''completely against his will'' by something [[ParanoiaFuel he was powerless to stop]]. [[TearJerker And then he probably ended up killing those same friends and family.]] Then there's why. Even in the alternate timeline where said poor schmuck never existed, [[spoiler:the Mushroom Bomb still created an OmnicidalManiac when it mutated someone.]] This means that whoever created the Mushroom Bomb intentionally made it so that it would [[spoiler:create the Lich.]] At best, they were ''that desperate''(which make you wonder how bad the Mushroom War was to resort to [[spoiler:the Lich]]). And what's the worst case scenario?

* The Ice King's [[spoiler: transformation]] is some fairly heavy BodyHorror when you really think about it. First your body temperature starts dropping, far below than what is normal for a human. Then your skin begins to turn corpse-blue. Then you begin growing unshaveable hair and ''razor-sharp fangs'', eventually looking like a monster. Although the Crown's mental effects are much worse, that in itself is fairly creepy.

* The Lemongrabs love their kids. [[PapaBear A lot.]] But they seemed completely apathetic when their "young Lemonjon" [[HeroicSacrifice exploded to save his family]]. Are the Lemongrabs really that sick that they don't care when their own children die? Do they not understand death? Are they unable to grieve? Did they just accept the heroic sacrifice very quickly and are content that Lemonjon made the decision he made? Will the Lemongrabs EVER grieve for the death of their son? Are they thinking about it off-screen?

* Does Seed-Wad have some kind of chronic illness? Will he spent the remainder of his life puking all over himself?
* [[TooDumbToLive The]] [[TheMentallyDisturbed Earls]] [[RoyallyScrewedUp Of]] [[TheCaligula Lemongrab]] have CHILDREN. That in itself is kind of scary. Sure, there's no doubt that they [[PapaBear love their kids]] and they seem to be better parents to "their boys" than [[ParentalNeglect PB was to them]], but the earls ARE still completely fucking nuts, to put it nicely, and [[DysfunctionJunction their kids don't seem much better]]. How can they raise and take care children if they themselves are totally [[NeverMyFault unable to take responsibility for their own actions]] and are THEMSELVES [[PsychopathicManchild children in the bodies of grown adults]]? And the kids- are they just the citizens of Castle Lemongrab, or are they the future heirs after the Lemongrabs die? Will these squishy little guys end up ruling the Candy Kingdom some day?

* What happens to Candy People when they become [[MadeOfExplodium scared or excitable?]] Also, other candy people seem to have no problem eating Lemonjon's remains, meaning that Finn and Jake could be unknowingly eating the bodies of candy suicides everytime they eat "regular" candy.

* "Mystery Dungeon." Ice King KO'd everyone and brought them to the mystery dungeon, that isn't too horrifying. But Lemongrab's situation kind of was. Ice King KO'd Lemongrab and brought him to the dungeon- taking him away from his starving partner and starving children. What must have Lemongrab 2 been thinking when Ice King did this? Did the Ice King kidnap Lemongrab in an isolated part of the castle, and thus, were Lemongrab 2 and all of the children worried when Lemongrab suddenly disappeared? Did Lemongrab 2 see his boyfriend getting knocked unconscious and kidnapped? Any of the babies? Lemonjon? What the hell was going on in Castle Lemongrab during "Mystery Dungeon?"
* That one lemon child whose face pealed back. Did it ever go back to normal? Was that a defense mechanism of some kind? What the hell was that? Is he still like that?
* Lemonjon was only a young child. Presumably he was just a few months old. Even the Lemongrabs referred to him as "young Lemonjon." LEMONJON WAS JUST A KID, AND HE EXPLODED. [[TooGoodForThisSinfulEarth Why must the good die young?!]]

* Made worse when you think about what went down right before the bomb hit. In the Farmworld Timeline, Simon made a HeroicSacrifice to stop the bomb. Unless Betty or someone close to him became the Lich(which is horrific in of itself), its likely the reason this didn't happen in the main universe was that the Lich's former self tried to save the world from the bomb, only to fail miserably. [[TearJerker In case you thought the Lich's origin was bad enough...]]

* From the episode "Puhoy", Finn starts a family in pillow land while still in a relationship with FP. Sure, he was going to break up with her due to her not laughing at one of his jokes, but he never told her this at all during the episode. So essentially he cheated on his emotionally unstable and incredibly destructive girlfriend. It's a good thing he at least forgot what happened.

* [[WordOfGod Jesse Moynihan]], one of the writers on Adventure Time whose episodes include Too Young, You Made Me, and Mystery Dungeon, has acknowleged the fact that Lemongrab intentionally resembles an autistic person. This has been acknowleged in nearly every episode containing the character, in various ways. But perhaps the most horrifying parallel to real life that "You Made Me" contains is the existence of the Reconditioning Chamber. If we assume that the Reconditioning Chamber exists because it was built, by Princess Bubblegum, as an early attempt at "fixing" Lemongrab, then this is a prallel to shockingly modern "treatments" that are used in real-life institutions to "treat" autistic people. These "treatments" include seclusion, restraints, physical abuse, and electric shocks. This basically makes Castle Lemongrab Ooo's version of the [[BedlamHouse Judge Rotenberg Center]]. And if all of this is true, then Lemongrab's insanity and rage in "You Made Me" is much more justified than we previously thought...

* From Prismo's dialog, other people have been in the Time Room before, and attempted to make wishes. So...given the horrible fallout that resulted from Finn's wish, what happened to ''them'', and what effects did their wish have on the universe? Also, ''how did they get in there''? Are there ''more'' artifacts as powerful as the Enchiridion? And what would happen if someone like the Lich found out about them?

* In the genderbent universe, the Lady Lemongrabs are portrayed as more [[http://vignette1.wikia.nocookie.net/adventuretimewithfinnandjake/images/1/17/Lady_Lemongrabs.png/revision/latest?cb=20130328150627 overtly romantic]] (even sexual) than their male counterparts, according to production artwork by "Sour Candy" author Kate Leth. The genderbent universe was created by the Ice King. Ice King somehow managed to track Lemongrab down in order to bring him to the Mystery Dungeon. Ice King likely saw Lemongrab and his partner doing... things. Is it possible that his somewhat kinky portrayal of the Lady Lemongrabs is due to his experience of follwing Lemongrab and spying on him during his intimate moments?!

* There are two groups of tiny, 5 inch tall factions in the Ooh library. How many times could they have been possibly maimed/killed by falling books?
* Just how long was the span of time between [[spoiler: Simon's discovery of the Crown]] and [[spoiler: the Mushroom War]]? He's 47 in "Simon and Marcie", and he doesn't look like he could be older than his thirties in his first tape (although it's hard to tell, due to the art style). Consider that, in a fairly normal world, he would probably need to stay isolated to avoid potentially landing himself in prison or in a lab somewhere. During that time, he have pretty much nothing to do but stew in his regrets and insanity. So, if the timescale previously established is accurate, he would have been living like that for '''decades'''.
* Lemongrab's "Put you in my oven!" line. As we've clearly seen, multiple times, he sees absolutely nothing wrong with the idea of torturing and hurting children. Is it possible that he's burned children alive before? Or, worse, baked and them eaten them as petty revenge?!

* So all of the Lemon People were starving. Lemonjon was literally attached to the wall, and with no visible arms or hands, it was show that he picked up objects with his mouth. Many of his teeth are broken or missing. It can be assumed that Lemonjon ate ''rocks'' to placate his hunger pains. Not only is that '''incredibly''' gross and horrific, but it's pretty damn sad, too.

* Something that might've slipped by so many because you wouldn't look back on it, but remember in "Prisoners of Love", when the Ice King is knocked out by Finn he begins having a dream where's he's seemingly endlessly flying throughout outer space, and upon his float, he runs into the Cosmic Owl. Episodes since have shown that seeing the cosmic owl in a dream is significant of a 'Croak Dream'. It's only the Ice King's second appearance in the entire series and we may have already been given an idea of how he's going to die. That's just to start! When you realize that the Ice Crown makes the Ice King immortal and magic, does that mean that the reason he's floating in space is because Earth is now gone and he's all that's left, [[AndIMustScream doomed to float through space for eternity]] in search of Fionna and Cake, or [[spoiler: Betty.]] Poor, poor [[TheWoobie Ice King...]]

* In "Candy Streets", Finn and Jake lock up Pete Sassafras, because [[{{Long Story}} they thought]] [[{{It Makes Sense In Context}} he stole something from LSP]]. It turns out he didn't. Did Finn and Jake remember to let him out? If they didn't, he's probably out now since the banana guards misunderstood PB's demand to "let them all out." However, this begs an all new brand of fridge horror when you wonder what all the escaped felons are doing in the Candy Kingdom.
* In ''The Party's Over, Isla de Senorita,'' Ice King sneaks into the palace, duct tapes Bubblegum's mouth and wakes her up with a creepy "Hey baby" with the intention of abducting her (again). Even worse is that he considers PB his girlfriend, even though she (for every good reason) wants nothing to do with him. And since the "Princess Bubblegum is Really700YearsOld" theory has been proven true in ''The Vault'', she has probably been dealing with this sort of thing for '''centuries!''' This also shows great patience on P.B.'s part as she's shown to have the capability of killing or seriously harming him and doesn't. Does she know about Simon and what the crown causes? Does she think he needs to live because the crown activates the Enchiridion?
* The Island Lady doesn't seem to be able to move. Lucky for her, really, that Party God was simply neglectful rather than straight-out abusive, because she's not able to defend herself. What happens if he comes back and doesn't know they broke up? Would he be able to tell him "No." that time?

* Basically the entire ending of "Too Old." Lemongrab has just [[spoiler: killed his brother]]. Princess Bubblegum, Finn, and Lemonhope are all fugitives of Castle Lemongrab. Lemongrab is '''extremely''' pissed-off at ''everyone'', including his children, who assisted in helping the fugitives escape. Lemongrab is now, thanks to his weight, freakishly, brutishly strong. Lemongrab is ''also'' a psychotic child abuser. Absolutely NOTHING indicates that he won't just kill all of his children (and possibly himself) off-screen.

* In the extended version of "Poor Little Lemonhope," (in which some versus were not used due to time constraints,) Lemonhope sings that his pillow is '''filled with bugs''' and his bed is a can of tomatoes. Lemonhope, and probably several of the other Lemon Children, are living in '''extremely''' unsanitary, appalling conditions. What if the little ones get sick?! Their father certainly hates them enough to deprive them of vital medical attention. It's possible that several lemon children died of infections already that would have been prevented simply by having a cleaner place to live.

* The implications raised by "Dungeon Train" are so disturbing that they almost serve to Deconstruct the Adventurer archetype. The "bosses" Finn fights are implied to be other Adventurers who have been there so long that their minds are warped and their bodies are so laden down with loot and armor that they're not even recognizable. By Finn's (at least) third go-around, he's barely recognizable himself under his mystical armor and weaponry. And he doesn't care. It doesn't bother him at all that the train is just one long endless repetitive Dungeon Crawl; it "makes sense" to him. In fact, it's the ''only'' thing in his life that makes sense. His relationship with Flame Princess fell apart, and his long-term crush on Princess Bubblegum was finally quashed, mainly due to his own screwups. In the previous episode Finn expresses a desire to just go back to rescuing princesses instead of getting emotionally involved with them. He's not good at relationships. But he's really good at killing things. That's why he stayed on the train. And all those other Adventurers probably had similar stories. They're not trapped there. Jake proved that the doors aren't even locked. They stayed by choice, content to just kill monsters and collect treasure for all eternity, because that's the only thing that they were good at. The kind of people who become Adventurers are emotionally damaged people, who seek out battle and glory because they're not able to live normal lives. No wonder Billy lived alone in a cave.

* In "Too Old" the lemon kingdom is shown to have become similar in customs to the Elizabethan era, with strict customs and cumbersome garments the lemonfolk were not shown to be wearing before. While on one hand it seems to be good that the lemons are beginning to develop something similar to a society, it seems to be as a result of the lemons trying and somewhat failing to emulate the candy kingdom. It may even be that they are being forced to do so against their will by Lemongrab Prime. (It is likely a mixture of both given the fact that some of the lemons seem to be fairly content while others appear miserable and uncomfortable while still others just seem confused.) What really seems to suggest this is the lemon herald suspended from the ceiling, just like PB's own pinata herald, despite being disturbingly unsuited to the task.
* From the NightmareFuel page on the scene of the Lemongrabs playing with the doll: "It's also Harsher in Hindsight in that it foreshadows the fate of the REAL lemon children in "Too Old". Lemongrab 2 wanted to put their "son" to bed because he claims he was tired, showing that Lemongrab 2 is a caring father. But Lemongrab wanted the "son" to dance around for his amusement. And then in "Too Old", we see the Floor Show, and Lemongrab's treatement of the children in general compared to Lemongrab 2's." ''Holy shit, that is'' '''brilliantly terrifying'''.

* In a way it's even worse that what you could think [[spoiler: the show ending and WordOfGod both state how the newly minted Pup Kindgdom thrived by destroying the Candy Kindgom and taking all of its resources for itself. As Lemonhope was intended to lead the Earldom of Lemongrab, and possibly succeed to Bonnibel as the leader of the whole Candy People, he could have rallied his people and save them from Gibbon's forces. But he didn't...]]

Potentially worse is the possibility that Bubblegum may actually be right. Previous attempts to "fix" Lemongrab failed spectacularly: giving him people to rule and/or live with just made him crazier. Maybe [[spoiler: a complete personality reboot]] is only thing that can be done.

* [[spoiler:Finn's dad]] is a major source of FridgeHorror. He was banished to the Citadel, which is where the worst criminals in the multiverse are imprisoned. No other villains of the Franchise/AdventureTime universe have committed a serious enough crime before [[spoiler:the Lich kills Prismo.]] Keep in mind this includes the [[OmnicidalManiac Lich]](who's tried to kill all life, and heavily implied to have killed off most of the survivors of the Mushroom War), Magic Man(who's a RealityWarper that has screwed around with both the deity-level Martians and citizens of Ooo for over 200 years) and [[SatanicArchetype Hunson Abadeer]](who has an iron-fisted rule over the Nightosphere in constant state of disarray and chaos). This means that whatever [[spoiler:Finn's dad]] did, [[EvilerThanThou it's worse than anything we've seen or will ever have seen the other Adventure Time bad guys accomplish up to now.]]
* When Prismo explains to Finn and Jake about the charge of the crime, he makes it sound as if its happened before with another Wishmaster. Adding the idea that there were more of Prismo's kind [[spoiler: Prismo's actual body.]] that have been killed at least once or twice by some criminal that went to the citadel for the crime of literally killing a god.

* So far, everyone who royally screws over the Lich [[spoiler:they die. Billy (who threw him in amber) and Prismo (aka [[PhysicalGod a wish-granting genie]]).]] You know who also royally screwed over the Lich? [[spoiler: Jake.]] And considering how much they've [[CruelAndUnusualDeath got away]] [[HeroKiller with]], there's a good chance that if [[spoiler:the Lich returns, ''he'll kill Jake.'']]

* At the end of the "Elements" miniseries Princess Bubblegum comes close to turning the entirety of Ooo into sweet and harmless candy, except Sweet Pea has been shown to be immune to the transformation. Because of this the Lich is presumably immune as well, and who knows what havoc he could have wreaked in a land where PB succeeded.

* Anyone who's involved in knitting or crochet has heard of the "Boyfriend Sweater Curse", where someone makes a sweater for their boyfriend and break up a short time later. Although PB didn't have anything resembling a romantic relationship with Finn, his crush on her ending would count.

* Trailers for "You Made Me!" described the episode as being [[VerySpecialEpisode A Very Special Lemongrab Episode]]. At a first glance, this might seem like a humorous juxtaposition of Lemongrab's ... uh... Lemongrabbishness and the absurdity of the idea of having him star in an episode with a serious moral to it. However, it's actually a StealthPun on Lemongrab's [[TheMentallyDisturbed "specialness."]]
* In "Too Young", Princess Bubblegum apparently hated Lemongrab, and just wanted him gone. But in "You Made Me!", she expresses regret at how messed-up she made the Earl, and tries to make amends for his lousy upbringing. Why the change of heart? Because when Princess Bubblegum turned 13, she lost her ability to relate to Lemongrab as her own creation, because he was older than her, and she lost her "maternal" (protective and caring towards her creation) instincts and saw Lemongrab as... well, a screaming lunatic. But when she turned 18 again, she got it back and is more mentally mature, she was able to relate more to Lemongrab, fully understanding that he is her responsibility, as his creator. This is why 13 year old PB was angry at Lemongrab, while 18 year old PB was worried about him.

* When Princess bubblegum becomes younger, the Ice King pretty much gives up the idea of kidnapping her. The obvious reason is that [[EvenEvilHasStandards he is not a pedophile]]. But what was his reason behind the kidnappings in the first place? he wants to ''marry'' a princess. PB was legally underage so he just couldn't marry her even if he tried to.

* What happened in "The Lich". Booko, the hologram in the Enchiridion, explains everything about the Enchiridion's hidden power. Who better to explain the new key factors of Adventure Time than the creator himself, Pendleton Ward. It's also interesting when you bring into count that people compare Adventure Time to a game of TabletopGame/DungeonsAndDragons. Ward essentially ended one chapter and went to the next game, explaining what's different and how to succeed with the Enchiridion.
* "The Lich" reveals that the Enchiridion is a gateway to the multiverse, and that the key to unlocking it are the jewels of various crowns-this includes the Ice King's crown. This may go to explain why the Ice King can see the Spirit World-as his crowns are needed to access the multiverse for the Enchiridion, it explains why he can see(and subtly influence) AnotherDimension.

* Why did Finn [[WhatTheHellHero make such messed up pairings?]] Given his own love-life, his ideas of romance may not be all there...

* Most people won't recognize it, but the fact that the shows setting was caused by a global war disaster, and that it encourages fun and peace, might as well mean that ''Adventure Time'' is one giant anti war slogan.
* Ferns existence is caused by The Finn Sword's Finn and The Grass Sword combined, but the reason he succumbs to the emissary from beyond's is not only because of his inferiority complex as Fern, but also his anger with the other Finn when he was inside The Finn Sword.
* In "Mystery Dungeon," it turns out that [[spoiler: Ice King had abducted the four other captive characters in order to reach an area that he thinks will bring his fan fiction "Fionna & Cake" to life. This fails, but that's beside the point. At first it seems goofy and ridiculous, simply the dream of any given fan-fic creator. But this is significant in a complex, overthought form: Ice King is labeled as either a villain or a kook by the people in his world. Even his adopted daughter Marceline hates to be around him (not because she doesn't like him, she simply cannot stand seeing her beloved Simon in such a broken state). Being a hazard, only one person will be willing to spend time with him: the hero, making sure he doesn't hurt anybody. Who is the hero? Finn. Finn has thus accidentally become the most consistent person in Ice King's life. Ice King enjoys his company (despite being his foe) because he's too lonely otherwise. Thus, he created a character, a female, who would be certain to stay with the Ice King in marriage. He created Fiona, female equivalent to Finn.]]

* In "Bad Little Boy", Gumball acts like a complete ineffective idiot and Fionna seems more violent and slightly less good than before....well, it's Marceline who's telling the story, so there's some of her own personality dipping into the characters and story.
* Simon is evidently a big fan of ''Series/{{Cheers}}'' as noted by his mantra being the theme song but there's more to it. The theme song itself is about going someplace where there's friends who listen and "where everybody knows your name." This becomes even more apparent in Adventure Time: Fionna and Cake, where Simon is feeling more alone than ever with no one truly understanding his crisis.

* Marceline's music about her dad eating her fries seems odd at first, then saddening when you learn what a fucked-up relationship they have. But it's only when you see "Memory of a Memory" you get ''why'' that hurt her so much. When her dad ate her fries, she was living in a ''post-apocalypse'' world, completely contaminated with radiation. How often did she even get to ''eat'', at all? Less alone something tasty like fries? Her father wasn't taking care of her 24-7, it seems, but he being King of the Nightosphere, ''he'' wouldn't have any problem with food. Those fries might've been an once-every-two-months thing for Marcy. It's also made worse by the fact that he is deathless, i.e. ''[[TheNeedless doesn't even need to eat]]''. So not only was her father depriving her of what was probably a rare treat for her, he was doing it despite the fact that it was completely useless to him. Marceline was later turned into a vampire who could only eat blood and red things. Those fries could have been the last time she ever tasted the dish.
* Adventure Time has a lot of shout-outs to 80s pop culture, as well as using vaguely 80-ish slang. Just RuleOfCool, right? Well, consider what was going on in the 80s that could have led to a nuclear war...]]

* In the episode "Hug Wolf", Princess Bubblegum had a cameo seen chasing a cat......[[StealthPun now what's another word for cat?]] Which serves as very stealthy reference to [[LesYay her and Marceline's possible relationship.]]
* An easy FridgeBrilliance one. After Holly Jolly Secrets, many characters on the show call the Ice King by his real name, [[spoiler: Simon]]. Why is that? Fairly simple. It's explained at the end of the Christmas episode that Finn and Jake re-created the VHS-watching event once per year. Due to the time era of the series, a post-apocalyptic world, it's rather safe to assume those are the only remaining cassettes still functioning (considering the rise of DVD may have happened in their world as well). And it could also be rather safe to assume that they watch all of them at each of those events. As a result, all those who are present learned the Ice King's secret. Sadly, this also raises a few questions of FridgeLogic. Did everyone who called the Ice King by his real name went to one of those events? Why isn't the Ice King angry that more and more people watch his secrets and laugh at his recorded antics? Oh, and why is Marceline present even after a more recent episode have revealed that [[spoiler: she was very close to Simon Petrikov, and it actually hurts her to see him as the Ice King]]?
* In the newest episode, Simon and Marcy, you'll probably notice a lot of pink stuff around the area that looks suspiciously like gum. It gets especially hard to miss when Simon climbs up some, and [[spoiler: a sentient mass of this stuff-with a FACE-gives Simon a can of chicken soup, after he had been looking for most of the episode.]] Three guesses as to why Ice King is so much more obsessed with PB than the other princesses.
* The Ice King, ineffectual is he is, actual wields considerable power if he were to use his abilities creatively rather than just freezing things. Of course, recent episodes have implied that [[spoiler: every time he uses his powers, he's acting by the Crown's will, not his own. The Crown, as an ambiguously-sentient inanimate object, probably isn't very intelligent or imaginative.]]

* At the end of Simon and Marcy he calls Marcy "Gunter." Another sign of his descent into madness, sure, but could the reason he dotes on Gunter be that he sees him as a seven year old Marceline? Gunter being Marceline's Childhood nickname would certainly explain why one shot of her journal in "Marceline's Closet" has "Gunter" written on it.

* Upon first watching All Your Fault, the Lemongrabs' accusingly shouting "This is all your fault! We warned you about us!" at Finn and Jake seems completely out of left field and like just more nonsense. However, when some thought has been put to things in the episode, it can be realized that there actually is a logic to this accusation. Not necessarily good logic, but it's not just an arbitrary shift of blame either. In particular, they ''did'' warn Finn and Jake. Consider that they had ''locked'' themselves in the dungeon. Not just hid away, locked themselves in. They were also upset when Finn and Jake broke down the door. But that can't have been entirely to keep the food they were hoarding from being eaten, because they knew they were out of food. Well, here's the thing. When Finn and Jake shout to them, they respond flatly with "Go away. No food here." At first blush this seems to be saying to go away because they have no food, but that doesn't make much sense, as they were likely expecting food to be delivered. Instead, what they really meant was, "Go away, don't bring any food in here." The Lemongrabs KNOW that they ''can not'' stop making children, they outright tell Finn and Jake this. They were keeping themselves locked away from the food they had requested be brought to the castle, so that their children would be fed and they wouldn't be able to get a hold of it and make more children. They were ''not'' expecting seeds to be brought. The seeds would likely not have helped their situation, anyway, as food plants take time to grow. Presumably the princess sent the seeds because, as is implied by her response to the letter, she thought they were bullshitting being out of food.

* In ''Jake Suit'', why is Finn able to have half his head dipped in a volcano without giving up the bet with Jake? Well he has been hanging out with Flame Princess for a while now hasn't he. He himself noted at one point that her flames were hurting less...
* Remember when Finn and Jake first met Billy, and they tried to follow his example and be heroes with community activism? Well they failed. But look at what's been happening with Ice King. They are basically keeping an crazy old man out of trouble by spending time with him and keeping him distracted! Community activism!

* Why did Lemongrab 2 make such a drastic personality change from the original? As Princess Bubblegum mentioned in "Too Old", the last time she saw them they were [[SingleMindedTwins completely identical.]] Then it hit me. It was precisely because they were so alike that caused Lemongrab 2 to become Lemongrab 1's [[PolarOppositeTwins polar opposite.]] Lemongrab has repeatedly shown an inability to read social cues, and is unable to understand the effects of his actions towards others. This reached its height in "Another Five More Short Graybles" where Lemongrab 1 tried to swallow Lemongrab 2 in a fit of rage after his Lemon Sweets doll is broken. The trauma of this act causes Lemongrab 2 to finally realize how much an obnoxious jerk he and the Earl are to those in the Candy Kingdom, because he and his brother were the exact same in personality and temperament. To him, it was like gazing into a mirror and witnessing his own flaws. As a result, he becomes much more subdued, not raising his voice nor objecting to his cruel treatment from his brother's hands because he believes he deserves to be punished out of guilt.
* In "The New Frontier", it's stated that when the Cosmic Owl appears in a dream, it means that the dream is revealing the circumstances of the one of the people appearing there (likely the dreamer). In "Prisoners of Love", however, the Ice King casually encounters the Cosmic Owl ("you're a sociopath!"). It seems like a contradiction, but there's a possible explanation: [[spoiler: since the crown has given Simon an unnaturally long life, it's possible that the Cosmic Owl has appeared several times during occasions where the Ice King (as a human) would've normally died, but didn't due to his powers (sort of like "failed" croak dreams); maybe, the Owl could do this as a reminder to Simon that he lives on borrowed time]]. To support this, in "Prisoners of Love", the dream appears after the Ice King has fallen unconscious due to Finn kicking him very hard. He even gets cartoony "dead eyes".
* Why would Maja consider Princess Bubblegum's shirt that she got from Marceline more sentimental than Hambo even though Marceline clearly had a deep connection with it? [[spoiler: Because as we've seen recently, Princess Bubblegum has to forgo her emotions and morals in order to rule her kingdom, as well as to make sure that she can make clear progress with her experiments. Because of this, Bubblegum's repressed emotions and ethics would only have one outlet, the shirt Marceline gave her! This is why Maja wanted the shirt, after she got the energy she needed from Hambo, she got the only thing that Bubblegum ever treasured, giving her emotional energy that was greater than Hambo altogether!]]

* Notice the features of the Ice King: cold skin, long beard, long pointy nose, pointy teeth, pointy ears, and a power over frost and ice. Where did he find the Ice Crown that made him that way? [[Myth/NorseMythology Northern Scandinavia]]. The Ice Crown didn't just turn him into a ice-powered mutant, it turned him into a [[OurGiantsAreBigger Jotun.]] (remember, original Norse folktales are remarkably ambiguous about the actual size of jotuns. For the Ice King to be human sized rather than what we'd think of as a "giant" isn't at all far fetched)

* The difference in [[CainAndAbel morality]] between the two Lemongrabs was actually well foreshadowed. When Lemongrab and Lemongrab 2 were playing with the Lemonsweet doll they had vastly different ideas about how it should be treated. Lemongrab 2 wanted to put it to bed so it could get some rest while Lemongrab 1 wanted it to keep dancing for his own amusement.The differences were already fairly clear.

** Even if PB was willing to risk such an eventuality, One should bear in mind that Finn has tried to persue a relation with Princess Bubblegum since he was ''12'', or possibly even younger than that, while PB herself has been technically an adult since long before Finn was even born. Bubblegum's efforts to encourage Finn they'd be BetterAsFriends may have also been to avoid coming across as a pedophile.
* The Lich [[spoiler:is ultimately defeated when Finn throws the Guardian's regenerating blood on him, turning him into an innocent infant with seemingly no memory of his past. It's been stated the Lich keeps cheating death at every turn, so what's the only thing that could stop him? ''Life''.]]

* In the episode "Blade of Grass" the grass wizard tells Finn the sword will "be part of him for eternity." In the season six premiere, Finn loses his arm and presumably the sword. But the flower growing shows it's still part of him. This was foreshadowed all the way back in it's introductory episode.
* Prismo says his wishes normally have an ironic twist to them (though it seems to only apply to big reality changers). [[spoiler:Jake's wish is to change the Lich's wish.]] This has an ironic twist in the end: [[spoiler:it traps the Lich in the time room, allowing him to kill Prismo.]] What makes this even better is that it technically was Prismo’s wish that Jake spoke, especially since Prismo had to led Jake all the way though to the end of wording the wish.

* As seen in 'Bad Little Boy' and 'Mystery Dungeon', Ice King [[spoiler:has an obsession with Fionna and Cake, wanting them to be real and what not.]] Later on, [[spoiler:Betty's takedown of Bella Noche is heavily reminiscent of Fionna's takedown of the Ice Queen. It could be that said obsession is another subconscious manifestation of Simon's longing for his fiancé!]]

* [[spoiler: Why was the shape shifter even on that world? It was planning to have it's child there. It's home plan probably isn't hospitable for children. That would also explain why it was so interested in Margaret. They were already going to have a child, so they would be ready to raise one. The baby supplies in its lair were likely a backup if it couldn't find a proper host family for its child. It likely only lingered for so long after to make sure the bite took. When it realized that Margaret attacked it, it probably knew why she was there. Notice how it only seemed knocked out while she was around, but as soon as she left it got up like it was nothing, then left. ]]
* Also in "Wizards Only Fools" when P.B. says she doesn't believe in magic, Jake shows of his shapeshifting powers and rhetorically asks what she would call that. She says it was probably a genetic mutation of some kind. [[spoiler: She was right.]]
* Back in "What have You Done?", Ice King claimed that he made his crown with stolen magic, but in "Holly Jolly Secrets", it was revealed that he bought it back when he was Simon. However, in "Evergreen", the crown is revealed to have been created by Ice King's past incarnation, Evergreen, using magic crystals he stole from a lava monster. So in a way, Ice King was telling the truth about making the crown.
** Evergreen isn't Ice King's past incarnation. The Ice Elemental's incarnation in the 21st century is Patience St. Pim, and Simon just found the crown. That said, Gunther's wish with the crown is to be more like Evergreen, which gave him some of the ice elemental's traits, most notably the whole "Gunther No" thing which lead to Ice King and Farmworld Finn calling people "Gunter" at random. It's not impossible that the crown stored Gunther's memories of Evergreen creating the crown and after 1,000 years, Ice King conflated Evergreen with himself.

* Ever since "Jake the Dog", this troper has always wondered why there was only one "Lich Bomb" that produced the show's true villain, when in such an apocalyptic war a powerful country would naturally develop several weapons of mass destruction. After watching "Evergreen", however, and realizing the true origin of the Lich is the comet that wiped out the dinosaurs, it's no wonder there was only single Lich: either someone found that one unique material that crashed into Earth and weaponized it, or the nuke struck the same spot that the comet had fallen, re-energizing it and mutating it upon explosion.

* Also, when Evergreen discusses the Crown, it's stated that the sources of the Wizards' power will survive. The Wizards are Fire, Ice, Candy, and Slime, with more implied. Sounds like the princesses and their kingdoms are actually the reincarnation of the Wizards' and their powers, only they rule politically instead of magically.

* Jake's kids take a very short time to become adults. This isn't that off from actual dogs, horses and a number of other animals, who's childhood is quick compared to their lifespan, unlike humans.

* The episode "James Baxter the Horse" is an allegory for learning animation. James Baxter is a real animator that has worked for both Disney and Pixar. It is not a coincidence the titular character of the episode is a horse when his best known film is "Spirit: Stallion of the Cimmaron" (obviously about a horse). As for the allegory: Finn and Jake become inspired by a professional James Baxter who is a master at making people happy, so they decide to do it too. They quickly realize that copying him isn't the most effective way to do it, but they must develop their own unique style. After some experiments (and frame by frame analysis), they succeed, and take it further by going to school. After some complex work at the institute, they become good at making people happy, by doing their own thing. This could all be about the animators being inspired by and trying to copy a master's craft at animating beautiful things but make people happy, eventually finding their own style. Not only that, but James Baxter (the horse) has way more fluid animation than everybody else in the show. Also this episode's title card did have James Baxter drawing at a drafting table.
* Don't look is an elaborate reference to "All is Vanity."

* Finn's depression in the episode "Music Hole" over the broken Finn Sword makes alot of sense when one remembers the origins of it and his connection to it. Because of the crack on the gem, it is kinda broken and Finn feels similarly like that.

* Consider the Rainicorns' abilities. They can change the color of surroundings at will, as Lady demonstrated in "My Two Favorite People", they can phase through objects, and they can hold people in their bodies as they phase. So then, imagine the level of apex predator that Rainicorns must have been. They could hide in any environment, could conceivably disorient their prey by changing their surroundings, and they could grab you and immobilize you before you even knew they were there. They could also take multiple victims at a time, and just hold on to them until they were ready to eat them one at a time.

* In "The Pods" it apparently turns out the Baby Pigs from the 1st pod are evil, but here's a thought: What it it was the Fairy Wands that were actually evil? What if they have the ability to corrupt the minds of anyone that uses them and turns them evil as long as they hold onto them, but they need someone with a weak free will, such as little baby piggies. This could mean that Finn and Jake essentially exploded...[[spoiler: meaning KILLED...]] innocent baby piglets...

* Could the Lub Glubs be something that born from the Lich King? Think about it... There's also the fact that one of them was munching on a skull with a hat identical to [[DistaffCounterpart Fionna's]] on it...

* The episode "When Wedding Bells Thaw" has a helpless princess trapped by an ice based object with the real person screaming for help in her mind. HarsherInHindsight does not begin to describe it.
* In the final video diary, [[spoiler:Simon is almost at full Ice King appearance and he is tearfully telling whomever finds the tapes to watch over him to make sure he doesn't hurt anyone. Did he realize how far gone he was at that point or did he hurt someone very badly, even killed them]]? This has even more horrifying implications when you find out that [[spoiler:Marceline was traveling around with the Ice King while he was being driven crazy]].

* The rhyme Finn says in "Marceline's Closet" could be about a nuclear bomb and it's mushroom cloud, similar to how "Ring Around the Rosie" refers to the Black Death:

* Why does Finn actually keep a piece of PB's hair? He may have a crush on her, but it seems their relationship could go beyond just flirting or talking....
* In "Freak City", there's a town on fire that is near to where Gork and the other Freaks are. Gork has the ability to spit out lava, and sense the town's inhabitants hate the freaks, Gork was the reason that town was on fire.

* Jesse Moynihan recently said that Princess Bubblegum isn't just Lemongrab's creator... She's his MOTHER. That's right- Too Young was basically a whole episode about a mother abandoning her mentally unstable child, and bullying him. It isn't as funny to watch her push him to the ground, call him names, incessantly cause him physical pain by spicing, cause him to fall out of a castle window and smash his head into the ground, fall out of a tree... He may not be a nice person, but it's Princess Bubblegum's fault that he's like that. Instead of helping him, it seems as if she's more content to stick him in a castle and have him raised by servants in isolation, and be borderline abusive to him. With this knowledge in mind, Too Young isn't really as funny anymore- it's really freaking depressing and disturbing. Even more-so that the creators of the show always manage to justify PB's abuse and neglect.
* Here's one involving, once again, the Lich, possibly also involving WhatCouldHaveBeen. Wrap you head around this: as we know, the Lich was originally called the Lich ''King'' (changed because of a villain from VideoGame/WorldOfWarcraft with the same name). As we also know, throughout the series, we've met a series of royalty who each rule over their own land and people. Bubblegum Princess has the Candy Kingdom (all of the people are sweets/pastries and the main city is one big gingerbread castle), the Ice King has the Ice Kingdom (a large frozen tundra), Lumpy Space Princess (lives in Lumpy Space), Hotdog Princess is ruler of the hotdog people, Wildberry Princess has Wildberry Kingdom, Duke of Nuts with the Duchy of Nuts, Fight King has the Fight Arena, etc., etc.. With this in mind: does/did the Lich King have his ''own kingdom''? And if he does, ''is it occupied by the undead or Liches''?
* From the two-parter Nightosphere special. First of all, the horrible condition the horrible, literally hellish condition the demons live in. Secondly, the two major cases of FateWorseThanDeath- the demon who was forced to continuously vomit bananas forever (especially considering that, for demons, bananas are basically excrement), and the demon whose head was transformed into abs. Third, the implications that Hunson's father is an even worse person than Hunson.

* If Bananas are the equivalent of [[spoiler:demonic feces,]] that means that a portal to the nightosphere has been or was at some point open millenia ago. For thousands of years, humans have been ingesting [[spoiler:demon dung.]] This raises some disturbing questions about the Candy Kingdom's Banana Guards.

* Does Lemongrab know that he's a failed experiment, and know how messed-up he is in the head? For a combination of FridgeHorror and a HUUUGE FridgeTearJerker, we have Princess Bubblegum saying: "He was the first one of my experiments gone wrong," RIGHT IN FRONT OF HIM. Also, Ian Jones-Quartey said, about Lemongrab's birthday, it's the day he remembers that "someone tried to play God and messed up." What kind of horrible, twisted, mangled excuse for a self concept does this poor bastard have?!

* Lemongrab is unable to read social cues, has intensely narrow interests and obsessions, lacks social recipricocy and empathy, is often angry, depressed, and anxious, doesn't understand humor, has an irregular manner of speaking, has difficulty controlling the volume of his voice, is an exceedingly picky eater, is obsessed with order, has few self-help skills, and expresses his emotions in ways that confuse people. The earl clearly meets all of the diagnostic criteria for sociopathy and nobody is helping him to adjust or be happy.

* The Royal Tart Toter is insane- we all know that. He's also deaf and blind. He has bites taken out of his shoulders, arms, and legs. Once assumes that monsters or creatures were eating him on his twisted journeys as he wandered around Ooo, trying to deliver his "tarts" (a squirrel and a pigeon) to the royal palace. However, the truth is even worse than that. In "Princess Cookie," we see the Royal Tart Toter in the Candy Kingdom mental hospital. He's wearing an Elizabeth's collar- a plastic collar worn by animals to keep them from biting their stitches or wounds. [[TearJerker THE ROYAL TART TOTER WAS EATING HIMSELF!]]

* Expansion on a theory mentioned above. Princess Bubblegum was shown to have treated the mild-mannered Goliad with respect and care, and asked Finn and Jake to take her to nursery school. However, she acted nothing but ashamed of the mentally disturbed Lemongrab, and sent him away to live an isolated life in a castle with servants to tend to his every whim, and no friends. Goliad turned out to be evil when she took Jake's bad example. Now... if Goliad turned evil after being treated with kindness, think about how Lemongrab is doing in his castle, after being treated as less than a person, pranked in painful ways, fired, insulted, then replaced. Has his mind completely snapped after the months/years of isolation, loneliness, and deprivation of family and friends? Is he actually evil now? If not, is he completely mentally unstable? Who's to say that Lemongrab won't go completely batshit and try to hurt Princess Bubblegum now? Who's to say that he hasn't gone completely insane already, and is currently wallowing in his own mental illness, his anger slowly festering into a terrible disease?

* Lemongrab is an idiot who's TooDumbToLive and has NoSocialSkills and LackOfEmpathy. Is it possible that, in his own castle, he's imprisoned innocent people, then ''forgot'' about them? Has he accidentally ''killed'' people by sending them to the dungeon, then forgetting about them?
* [[spoiler:Ricardio grabs the unconscious Lady Rainicorn and ties her in a knot. At the end of the episode Lady reveals that she is pregnant. Just think what could have happened to the babies...]] PB's horrified shriek makes it even worse... Some theorize that this moment is why [[http://media.tumblr.com/64b574bae23922870a009cc56c363adc/tumblr_inline_mmt183rLfY1qksxpg.png Jake Jr.]] [[spoiler: doesn't have a face, and her horn is on the wrong side of her body.]]

* If PB was able to make a second Lemongrab in his kitchen, then he must have had a substantial amount of candy mass lying around. But why would he have sweets when he hates food with any flavor to it? Remember that he has both a torture chamber and a sword he doesn't shy way from using, and we never saw the servants that supposedly care for him.

* An idea: the demonic wishing eye makes one more evil for exchange for a wish. Now, what does that mean if Gunter can use it with little effect on himself...

* When Simon first found Marceline, she's surrounded in a war zone: flames, destroyed cars, buildings and more horrifyingly, what seems to be empty casings of red bullets on the ground. What's worse: there's no one around for what seems to be miles. Just how long has Marceline stood there, crying her eyes out before Simon found her? Just imagine, being a child surrounded by war and death, with no one to help you.

* We've seen the Ice King's backstory. It's quite a tear jerker. But what about his DistaffCounterpart, the Ice queen? What horrors did she have to go through while transforming into what she is now? Can we even assume she was there for [[spoiler: Marshal Lee like Simon was for Marceline]]? For all we know, the Ice Queen is Betty who originally put on the crown instead of Simon. Maybe one day, they'll even be reunited thanks to Prismo, or the multiverse.
* In "The Lich" [[spoiler: the Lich is able to successfully manipulate Finn into making a portal to the Multiverse because he knew Finn's heroic nature would compel him destroy the Enchiridion. You then remember that the Lich spent most of the last two seasons in the Snail that waves at the audience. Fridge Horror sets in when you realize the Snail wasn't there to wave at us--''the Lich was observing Finn, learning how he thinks!'']]
* So, um... Where are Finn and Jake's parents? We know they have/had other family (a mother, father and at least one brother), so how come they've only appeared in flashbacks? Are they dead? Did they just leave? Considering the many horrible fates that can befall someone in [[CrapsaccharineWorld Ooo]], and considering that Finn would have been quite young when it happened, there are some [[BackstoryHorror very, very disturbing possibilities]].

* So, the gem in [[ArtifactOfDoom The Ice King's Crown]] is part of the same set as the gems in the crowns of the rest of Ooo's royalty. Does this mean that they're ''all'' suffering from the same sort of mental-and-physical contamination Simon is?

* [[spoiler: In the alternate universe, Marceline states that the [[ArtifactOfDoom Ice Crown]] froze the world out of rage at Simon Petrikov's [[HeroicSacrifice death]]]]. This, coupled with the penitence shelf incident, imply that the Crown is ''sentient''. [[ItsAllMyFault Does it know what it's done to Simon, and anyone else who might have worn it?]] Does it care?
* If it was grieving for him, than that would imply it does care for its wearer, very deeply in fact. [[AndIMustScream So it would be trapped with the knowledge that it is doomed to destroy anyone it comes into contact with, against its will - and it will be stuck that way forever, because it is very likely indestructable.]]
* If it froze the world because its wearer, Simon, died, then did it cause the Ice Age after the dinosaurs? Did it kill off the dinosaurs?[[AccidentallyCorrectWriting Did a dinosaur wear it, then die]], and the crown freaked out? Who even made it in the first place?

* "Videomakers" has Finn and Jake fight over making an action movie and a romantic comedy, respectively. Finn, an energetic 13 year old would love a non-stop action movie while Jake, a 28 year old dog in a relationship would want a romantic comedy to snuggle up and make out with his girlfriend Lady Rainicorn. - Tropers/SpiderFan14

* Why is Fionna chubby compare to her male version? Because she isn't [[{{Pun}} Thin]].

** [[spoiler:The only dream character with much dialogue is Jake, because Finn believes him to be real. Once Finn starts to question it, then his dialogue becomes much more limited and cryptic, like everyone else in the dream, and when confronted about it he gets [[StepfordSmiler very quiet and smiley]].]] Many lucid dreamers will find that this is exactly how characters in dreams behave, especially when confronted about their reality, probably because [[WriteWhatYouKnow the brain does not know what it's like to not be real,]] so it doesn't explain and goes for the closest it can find to a realistic reaction.

* At first, Finn's use words like, "Mathematical" and "Rhombus" for catchphrases when it's obvious that he's horrible at math doesn't make sense. But Finn knows Princess Bubblegum is a scientist and super smart: and what better way to impress her than by using super smart math words? Not too bright a plan, but Finn is a thirteen-year-old boy; hero or not, he probably knows next to nothing about girls.

* There are many clues in "Mystery Train" which make sense and tie together if you know what happens at the end of the episode. A list of the clues can be seen [[http://adventuretime.wikia.com/index.php?title=Mystery_Train&oldid=99494#Clues here.]]

* Maybe obvious to some, but the setting of the show is in the Land of Ooo. And some pretty incredible and weird stuff happen there, making the viewer amazed enough to say "Ooo."

* NEPTR (Never-Ending-Pie-Throwing-Robot) was built for the sole purpose of throwing pies at jake ''forever''. This not only mean Finn almost subjected Jake to an ''[[FridgeHorror enternity of getting nailed in the face by pies,]]'' but means that the fact that we see NEPTR in future episodes means he never fufilled his sole purpose for being created, as he didn't throw those pies at Jake forever. Thank god Ice King zapped him and caused his affinity for princesses, otherwise the poor guy might be having an existential crisis.

* Adventure Time draws influences not only from other cartoons, movies and shows, but also from video games as well. In the episode "Tree Trunks", the Snake Arm Ruby Brain Beast has a magic gem weak spot, resembling obvious weak spots on enemies and bosses. In "Dungeon", Finn explores a dungeon a la '' Franchise/TheLegendOfZelda''. In the dungeon, he encounters two boss like foes, the Demon Cat and the Bucket Knight, and when he finds a key to open a dungeon door, it's suspended in midair.[[spoiler: Actually it's inside a Gelatinous Cube.]] In "The Other Tarts", Finn and Jake are carrying the Royal Tarts in an anti-gravity tote chamber, which has a red bar to indicate it's full. When tarts are removed from the, the size of the bar lowers like a health bar.

* Finn's phobia of the ocean (and ''only'' the ocean - he's fine with other bodies of water, like rivers or lakes) seems totally irrational at first - until, in "His Hero", Billy is described as having "slayed an evil ocean". [[FridgeHorror Think on that for a minute...]]''an entire ocean'' can potentially be evil. It's absolutely massive, fully capable of wreaking terrible destruction on land (think tsunamis) and pretty much impossible to kill (unless you're Billy, [[DidYouJustPunchOutCthulhu in which case you can just punch it to death]]). With that in mind, Finn's Thalassophobia makes a lot more sense.

* At first, Finn's use words like, "Mathematical" and "Rhombus" for catchphrases when it's obvious that he's horrible at math doesn't make sense. But Finn knows Princess Bubblegum is a scientist and super smart: and what better way to impress her than by using super smart math words? Not too bright a plan, but Finn is a thirteen year old boy; hero or not, he probably knows next to nothing about girls.

* The trinket Billy wears on his head. At first it seems like a normal accessory. But, you realize after "Mortal Folly" That he must wear it to defend from the Lich's mind control.

* It seems that many fans [[LateToThePunchLine didn't get Jake's joke]] from "Power Animal" until they started thinking about it more deeply or until it was explained to them. He said "Did ya hear about the goblin who got his left arm and left leg cut off?" The nymphs respond, "No," to which Jake responds, "That's okay; he's al'''right''' now!!" Similarly, the water nymph's song is ''almost'' a joke.

* Another piece of brilliance can be found in "Mortal Folly:" When the Lich is traveling through water, he leaves behind a trail of oil. And what are oilspills linked with?

* The Lich is still out there, now in a stronger and more mobile body then before....The Land of Ooo isn't safe just yet.

''[[AlternateCharacterInterpretation really]]'' [[AlternateCharacterInterpretation have cared about him?]] Poor [[spoiler: [[TheWoobie Simon]]]] may have spent 600 years pining for someone who, in the end, didn't even love him all that much.

* The Ice King has been stealing princesses LONG before Finn showed up. It is likely that he has already forced a princess to marry him. The Ice King has EXTREME difficulty empathizing with others, and has been shown blatantly ignoring the screams of terror from his kidnapped princesses. It is entirely possible that the Ice King has ''raped'' women, and he was too insane to realize that it was wrong!

* Why is Abraham Lincoln viewed as such a high power in this post-apocalyptic world? Because when geologists unearth statues or sculptures, they assume that they hold some sort of religious significance. Let's say their digging around the remains of UsefulNotes/WashingtonDC...

* In the Mortal Folly/Mortal Coil two parter, [[spoiler:The Lich possessing a snail is a pretty smart joke considering he was built up upon in a snail's pace]].

* There'll obviously be a lot of this after "Holly Jolly Secrets", but one that stood out was a part in "What Have You Done" where the Ice King's crown cries and says, "I'm sorry, I'm so sorry..." after being put on the Shelf of Penitence. In "Holly Jolly Secrets", we find out that a long time ago, the Ice King was [[spoiler: a normal human being named Simon Petrikov with a fiancee named Betty. Simon was sold the crown and decided to put it on to give Betty a laugh. The crown showed him visions and caused a flash of insanity, however, and after a NoodleIncident Betty was mortified and left him. The crown causes Simon to go into loneliness and insanity, leading to the Ice King we know and laugh at. So in "What Have You Done", '''the crown is apologizing for the horrible things it did to Simon.''']] Even worse, the Crown's apology may be from [[spoiler:whatever is left of Simon's shattered psyche, still plagued with regret over what he did.]]

* In ''It Came From the Nightosphere'', Hunson says Gunther is the most evil thing he has encountered. Five seasons later [[spoiler:Orgalorg is revealed,]] and suddenly it makes a lot more sense.

* In the Nightosphere episode, Gunther is described as absolute evil. What does this mean for [[spoiler: his baby?]]

* In "Hoots", [[spoiler:the titular Hoots (which is Gunther the Penguin dreaming) enters PB's dream with the Cosmic Owl. Hoots then makes PB's dream (which was her servants loving her and thanking her for everything she's done, while she stands on a tall tower) into a nightmare. Her servants all turn against her and instead hate her. PB, while very heartbroken at the sight of this, is pushed off by Hoot's nightmare essence(?) and falls to her death. Since the Cosmic Owl was in this dream, this means PB is going to die this way.]]

* In the final video diary, [[spoiler:Simon is almost at full Ice King appearance and he is tearfully telling whomever finds the tapes to watch over him to make sure he doesn't hurt anyone. Did he realize how far gone he was at that point or did he hurt someone very badly, even killed them]]? This has even more horrifying implications when you find out that [[spoiler:Marceline was traveling around with the Ice King while he was being driven crazy]]. Imagine Marceline being changed to a vampire because [[spoiler:it was the only way to save her from a frozen death when Simon had an episode and attacked her]].