[[folder: Fridge Brilliance ]]

* Sora starts exibiting some OOC behavior towards his friends later in the game. This could easily be chalked up to Namine's manipulations. Once Roxas enters the picture, it sheds a new light on things. Sora's been a heartless since he fought Ansem in Hollow Bastion. There was only so much Kairi's light could do to protect him.
* Every time you enter a new floor, the previous floors rooms are reset. As Sora and the gang advance through Castle Oblivion, they begin forgetting important things. Meaning, they forgot how they set up the rooms and need to set them up again.
* Once you know the basics of the plot, if you start Sora's storyline over, it becomes hard ''not'' to notice that pretty much every world's modified subplot deals with the manipulation and falsification of memories. Considering the circumstances, it is entirely possible that Namine is trying to send coded warnings to Sora that he's being brainwashed.
* The Riku Replica's bizarre {{Jerkass}} behavior and desire to fight Sora for what appears to be no good reason should send up red flags that he's a fake, but doesn't because ''this is exactly how Riku acts throughout the entire first game''. The subject of his anger at Sora has simply been changed from Kairi to Naminé.
* Marluxia's ViewerGenderConfusion makes a whole lot of sense when you consider that Marluxia was originally conceived as female.
* For the ''[[CompilationRerelease I.5 HD ReMIX]]'', the fandom rejoiced when ''VideoGame/KingdomHeartsI'' received re-recorded tracks - and raged upon learning that ''Re:Chain of Memories'' not only ''didn't'' receive re-recorded tracks, but it didn't use ''the already re-recorded tracks for I'' - instead, the HD version of ''Re:Chain'' uses the PS2-generated songs from the ''original release''. Then you remember: this is not ''actually'' one of Sora's adventures, it's an imitation of his previous adventure. Castle Oblivion just couldn't get the audio right. The exception is the battle with Marluxia: the... last? phase of the fight ''does'' receive a re-recording, signifying that he's breaking free of the imitation and finishing his adventure ''properly''.
* In ''Kingdom Hearts I'', the Powerwild and Bouncywild Heartless were found in the Deep Jungle world. Because the rights to Tarzan were lost before Chain of Memories, those Heartless are now found in Olympus Coliseum; the only world not to have any world-exclusive Heartless in KHI.
* In Reverse/Rebirth, Riku gets pre-arranged decks for each world (and each boss fight outside of the worlds). In Wonderland, Riku gets an extraordinarily sucky deck with less cards than normal and no cards above 5, whereas in Halloween Town for example, Riku gets an awesome deck with plenty of 9's, 7's and 0's. The fridge brilliance here is that Riku gets his power from Darkness. In a saccharine world like Wonderland, Riku is significantly weakened, while in dark and spooky Halloween Town he is significantly stronger. It goes even deeper, too: The mechanics directly support this, and so in Halloween town it is a piece of cake to break enemy cards and activate Dark Mode, whereas in Wonderland it becomes nigh impossible unless you carefully manage your deck.
* In the ''Re:chain'' remake, several of Sora's Sleights were changed, giving him attacks like Magnet Spiral, Firaga Burst, and Freeze. Not to mention his numerous "Raid" variants, Holy, and Tornado. Now go play ''Birth By Sleep''. [[spoiler:Those are ''Ven's'' attacks -- Sora's heart is reacting to Ven's sleeping body inside Castle Oblivion, and the deeper he goes, the more of Ven's abilities he gains access to]]. This is also why Sora loses those attacks come ''Kingdom Hearts II''.
* There are a lot of subtleties to the way cards are used by the various characters in this game.
** Notice how only humanoid bosses use red and blue cards instead of the black cards used by the Heartless and (most) Disney bosses.
** In addition, the only characters who use cards that ''don't just represent themselves'' is Sora (and Riku, but only with enemy cards). What's Sora's special power, again? Linking his heart with others.
** Riku's fixed decks make him fight more like a boss would in Sora's story. He also does not have magic cards because he [[HoldingBackThePhlebotinum hasn't fully accepted the darkness enough]] to use it outside of Dark Mode. Riku Replica, who is in permanent Dark Mode, doesn't have this problem and can use darkness-as-magic freely, which also [[ThatOneAttack (in)]]conveniently [[TheComputerIsACheatingBastard lets him use Dark Aura with lower-level cards]].


[[folder: Fridge Horror ]]

* In Reverse/Rebirth when Riku was being {{Mind Rape}}d by [[MasterOfIllusion Zexion]] and was thrown into an illusion that made him think he drowning in light, which is implied to have the ability to actually kill him off if Riku gave into it. Now Riku's in a position that if no one snaps him out of it, he will die. Of course Namine saves him and all, ''but'' where was the one who told him "You're not alone" in Riku's hour of greatest need? It might not be horrific to some, but the idea that everybody's childhood companion Mickey Mouse left someone to die is rather unnerving.
** Add to that the fact Mickey later said that he originally believed that all darkness was bad ''no matter what'', that includes those who wield darkness. Though the [[strike:asshole]] other king (banished or not) in the room was kinda distracting.
** But since it was only an illusion, it might not have physically harmed him, or perhaps Mickey couldn't tell he was in true danger.
** Additionally, Mickey is a wielder of ''light''. Illusion or no, he may well believe that there is nothing he can do against light except ''pray Riku has enough darkness to fight it''.
*** These are all great theories, except there's one problem here. Mickey is unavailable during this time due to having to use up a good amount of his power to save Riku from Ansem; which left him cut off from Riku for awhile since Mickey was still in the Realm of Darkness at the time and not physically there to begin with. He couldn't have helped Riku out during this time even if he wanted to.


[[folder: Fridge Logic ]]

* Do you remember that part in Agrabah where Aladdin tricks Jafar into using his second wish? Yeah, no. Jafar never actually said "I wish..." so if anything, HE tricked Genie into doing crap for him for free.
** However, Genie considered saving Aladdin's life in the movie as using up a wish, so maybe those rules also hold in this game.
** He ordered Genie to do something, which is the same as making a wish - and [[FridgeBrilliance in the movie, when Genie takes Aladdin out of the Cave of Wonders, Aladdin never actually orders him to do it, he actually]] ''[[FridgeBrilliance dares]]'' him to do it.