History Fridge / CodeLyoko

* Franz not making himself know in Season 1 and most of Season 2 makes semi-sense as he was likely keeping his presence unknown from XANA himself within Carthage, a sector Jeremie couldn't even find until "Uncharted Territory." The moment he activated a tower, two Megatanks tried to destroy it outright.

* So wait a minute, ''how'' did the kids figure out that "Return to the Past" won't restore people who died in the real world?

* Aelita's first materialization at first raises the question, "Where'd she get the clothes?" Then comes the reveal that she's [[spoiler:human]], and suddenly it makes sense.

---> William : Wow (looks at his {{BFS}})! That’s some pretty classy gear! And you (refers to Aelita)? No weapon? You fight with your bear hands? What’s your superpower?

* Yumi's status as the DesignatedVictim makes a bit of sense - She's the only one who lives off-campus. So thus, she's an easier target for XANA to pick on. If she goes missing? It's much ''much'' harder to cover since there can't be an easily-fashioned cover story explaining her absence.

* Ulrich, Yumi(her attempted possession wasn't shown on-screen),and Odd are able to resist being possessed. This could be because, when a human is possessed by a specter, [[NighInvulnerability their body becomes virtual]]. Ulrich, Odd, and Yumi can't be possessed by a specter because their bodies are used to being virtual from their trips to and from Lyoko!

* The William Clone (Muffin II, if the fan nickname ever caught on), being deleted at the end with no apparent remorse. Not to say it wasn't neccessary; just changing his DNA would still leave a double or a stranger with an unusual personality roaming the campus. And fixing that would make it hard to shut down Lyoko if he chose to defend it. But it seems strange that Jérémie, Aelita, or even William don't give any thought to a being they created to resemble a person he could never actually become, in the form that Jérémie once thought Aelita was. Not to mention he helped Jérémie protect the supercomputer in "A Lack of Goodwill", either to save his creator (adds a sad note to the horror), save his data (which would mean he had a survival instinct), or to destroy the real William (emphasizing that his whole purpose is to become someone who already exists and is not him). And now for where the horror comes in: Jérémie updated the clone using some of the data used to make XANA's A.I. Emergent Qualities might not matter anymore if his capacity to learn is intact.

* Picture this scenario: you get a text message from someone asking you to meet them in the woods alone. Do you go? If you're Odd Della Robbia, yes. Let me repeat that; even knowing that someone who wants him ''dead'' can control electronics to do whatever he darn well pleases, Odd walked into a scenario that even if it hadn't been XANA, could have ended with him injured and unable to call for help, sexually assaulted and again unable to call for help, injured and unconscious or worse, ''dead''. How exactly does a 13-year-old manage to completely ''miss'' the importance of stranger danger?

* Picture this scenario: you get a text message from someone asking you to meet them in the woods alone. Do you go? If you're Odd Della Robbia, yes. Let me repeat that; even knowing that someone who wants him ''dead'' can control electronics to do whatever he darn well pleases, Odd walked into a scenario that even if it hadn't been XANA, could have ended with him injured and unable to call for help or worse, ''dead''. How exactly does a 13-year-old manage to completely ''miss'' the importance of stranger danger.

*** It has also been suggested that the supercomputer keeps a backlog of everything that happened since it had been turned on in order to do so, therefore it can be assumed that when the return to the past program is implemented the Lyoko Warriors aren't actually capable of remembering but it is the computer that helped them retain their memories when it activated. This brings across a kind of Fridge Horror when you think about the fact that anyone is capable of programing the computer to reinsert there memories, proven to be true in Code Lyoko Evolution.

** Even worse when you consider the fact XANA can activate towers in his Replikas without any interruption, since the Lyoko-Warriors are miles away. The people inside the labs probably went through the same NightmareFuel the Lyoko-Warriors live with everyday... except with no virtualization, no way to fight back, no way to disactivate the towers, and no return to the past to fix the mess.

* In "Ultimatum," Odd warns XANA that humans can be killed by extreme cold. Well guess XANA's plan in "Cold War," a mere four episodes later!

[[AC:FridgeLogic]]
* In ''Marabounta'', Jeremy explains the Marabounta turning against Aelita because of the virus XANA put inside her at the end of season 1. [[spoiler:Season 2 finale reveals she had no virus to begin with. Then why did the Marabounta turn against her ?]]
** WordOfGod admitted it was a scenaristic mistake, but said you could assume Aelita had a special connection to Lyoko, which might explain what happened.
** Considering XANA was using a data fragment that contained her past memories to connect her to the A.I., the Marabounta likely detected this connection and sought to eliminate any trace to XANA as it was programmed.
** Same episode, why would XANA choose to leave and even show some form of respect through it's monsters after the fight instead of trying again to kill most of the crew and steal those memories it needed? Perhaps grudging respect for Jeremy having created something about as horrifically destructive as itself. XANA being a very twisted, manipulative, and generally destructive intelligence may actually have seen some beauty in the Marabounte.
* Why exactly did they decide to shut down the Supercomputer at the end of the series ? At this point, XANA was gone, making the machine harmless. While there was no use to keep it active either, they still act like it was dangerous...
** The thing works with nuclear fuel (don't remember if uranium or plutonium). Having no idea on how to deal with leaks or trust into the government to not abuse of it, they shut it off while they learned how to safely take apart the nuclear reactor.
** Probably the symbolism of their job being done. The Supercomputer was basically their weapon, so once the war was over, they no longer needed to be armed.
** The show treats programming and software realistically. Now imagine, one day, while an empty Lyoko is running, it suddenly runs into a bug. Reality: Broken.
** Also ''Marabounte'' was kind enough to show us that emergent intelligence is relatively easy to accomplish in Lyoko, from a simple program designed to search and destroy to full blown independent being in one afternoon, the last thing they need is another XANA taking for naturally when they haven't bothered to watch Lyoko in years or some backup program comming online.

* At the end of the Season 4 episode "I'd Rather Not Talk About It", a Jim-centric episode, Jérémie accepts Jim's offer to come to his next boot camps, even if he was unfit for the first one. His friends don't understand why he would go through this tough training again. However, it makes more sense if you take into consideration that: 1. He and Aelita organized this session with Jim to become physically better in the real world, in case of a potential XANA attack, and 2. A few episodes earlier, he mentions that XANA knows the Lyoko-Warriors can barely make the Supercomputer work without Jérémie, thus the destructive AI has centered its attacks on the brainy teen. With this in mind, Jérémie likely realized he needs this physical training, as for the moment he's the one in the group least capable of fending off a XANA attack in the real world, and it could help him during future encounters to be a little more trained on the physical side.

* In "Claustrophobia", it was ''pure luck'' that Jeremie and Yumi left the cafeteria once it got sealed off. If they hadn't, there would have been no one to stop XANA.

* In "Echoes", Jeremie reveals that he had no friends before Lyoko; sad but understandable. Then he follows it up with explaining his fears that the rest of the gang will abandon him once the Supercomputer is no longer part of their lives. How badly was he bullied to believe that the kids who would risk their lives (and have proven it numerous times) would drop him like a rock the minute XANA was out of the picture?