Line #68 VideoGame/ThirteenSentinelsAegisRim


1	[[quoteright:349:https://static.tvtropes.org/pmwiki/pub/images/13sar.png]]
2
3	->''"It's really happening... Just as you said. A kaiju attacked, like in that movie. So we'll do what we have to do. Get in the robots and fight. Our fate was sealed a long time ago."''
4	-->-- '''Juro Kurabe'''
5
6	''13 Sentinels: Aegis Rim'' is a narrative-focused AdventureGame with [[RealTimeStrategy Real Time Tactics]] gameplay segments developed by Creator/{{Vanillaware}} and published by Creator/{{Atlus}}. It was first teased in a preview video in July 2015 as a collaboration project between Atlus, before being finally revealed in the 2015 Tokyo Game Show. The game was released for the Platform/PlayStation4 on November 28, 2019 in Japan. A playable demo was released on March 14, containing the game's first three hours. It was released overseas on September 22, 2020 with EFIGS support and an English dub.
7
8	A Platform/NintendoSwitch version was released on April 12, 2022. This was notably the first time a Vanillaware game has been released on non-[=PlayStation=] hardware since ''VideoGame/MuramasaTheDemonBlade's'' original release on the Platform/{{Wii}} in 2009.
9
10	In [[TheEighties 1980s Tokyo]], thirteen high-school students from Sakura High School are thrust into a mysterious series of events spanning from the 1940s all the way to 23rd century, all of which involve humanity's future demise at the hands of a [[AlienInvasion massive invasion]] from aliens known as the Deimos. The story is told from the individual viewpoints of the thirteen characters. As the thirteen students unravel the mysteries surrounding their involvement and the fight against the Deimos, they'll soon discover the secrets that shape them, the world as they know, and their destiny.
11
12	Unlike most of the developer's previous efforts, this game takes place in a more modern setting, albeit one with giant mechs. The game is directed by George Kamitani, with the music composed by members of Music/{{Basiscape}}.
13	----
14	!!Sentinel. Activate!!
15	[[foldercontrol]]
16
17	[[folder:#-I]]
18	* TheEighties: The game is set primarily in a fictionalized version of [=1980s=]… [[spoiler: rather a simulation of the [=1980s=], the game is actually set millions of years into the future.]]
19	* AbortedArc: [[spoiler: Tamao]] ended up having so little presence in the story that you probably didn't realize [[spoiler: she was one of the Compatibles]] until the ending. Considering she had an unresolved subplot about [[spoiler:Gouto implanting memories in her, then erasing said memories]], it is possible that she was originally intended to have a bigger role.
20	* AbsurdlyHighLevelCap: Sentinel pilots can reach level 99, but they unlock their final skills at level 30 (which is about when you'd reach the FinalBattle).
21	* AccidentalTimeTravel: Several of the protagonists end up stranding themselves in different eras, whether by being in the wrong place at the wrong time or unwittingly activating one of the gates to shift eras.
22	** Takatoshi angrily confronts Ei Sekigahara as the latter is about to shift, sending the two from the year 1945 to 1985.
23	** Tomi, Nenji and Miwako are all shifted from 1985 to 2025 when one of the gates mysteriously activates near them.
24	** Keitaro, not knowing about the Sentinels' time-travel capabilities, is shifted from his native 1945 to 1985.
25	* AdvancingWallOfDoom: The Drum Mine EX boss fight has the boss slowly advancing towards the terminal. It has minimal offensive capabilities, but it will SuicideAttack into the Terminal if it reaches it, taking it out. The player has to empty its [[DamageSpongeBoss extremely high health]] before it does.
26	* AIIsACrapshoot: [[spoiler:Universal Control does not register the Deimos attack as a problem, which is why it’s necessary to trigger the Aegis manually to kill them.]]
27	* AlbumClosure: The song played during the title screen can be heard during the final battle and the ending scenes before the credits.
28	* AlienInvasion: Most characters assume the Deimos that are invading the world are aliens. [[spoiler:This turns out to be a WrongAssumption. They are actually heavy machinery made by Shikishima Industries for terraforming planets, and were inserted into the simulation by a heartbroken Shinonome in 2188 who had lost hope for humanity and wanted to KillAllHumans.]] Furthering twisting the concept, there are element subtly comparing [[spoiler:human space colonization to an alien invasion, as humans coming to a new planet would be the aliens for that planet. The monitoring satellite for Project Arc is even referred to as the mothership, and the mainframes below each sector built by humans as [=UFOs=].]]
29	* AllThereInTheManual: The Mystery Files go into depth on things that aren't explained in the story proper, such as the fates of certain side characters or [[spoiler:how much time really passed since 2188]]. The Double Helix artbook also reveals some additional information.
30	* AmbiguouslyEvil:
31	** Both Gouto and Ms. Morimura are shown to be suspicious for almost all routes due to [[spoiler:all the memory tampering and meddling they do. Gouto ends up being GoodAllAlong, while Morimura turns out to be a WellIntentionedExtremist completely separate from the memory tampering]].
32	* AnachronicOrder: With thirteen lead characters, each with individual perspectives, the chronological order of the story is presented to the player non-linearly through their perspective and is dependent on the player choosing which character's story to see, and that's not including the StoryBranching that occurs frequently in the stories, which can quickly bring the non-linear nature into MindScrew territory, unless one relies on the game's event viewer to replay previous events in the story in chronological order.
33	* AlternateSelf: The game makes extensive use of this trope, since [[spoiler:most characters are either clones or AIs.]]
34	** [[spoiler:Ms. Morimura and Juro Izumi (later known as 426) are actually clones from 2 loops before, having managed to survive the world reset by BrainUploading in Sector 0. In the next loop, Tetsuya Ida also make use of this to survive the new reset, along with the androids of Tomi (who later become Miyuki Inaba), Tamao and Keitaro (who would later become BJ).]]
35	** [[spoiler:Iori Fuyusaka and Shu Amiguchi are the clones of Chihiro Morimura and Tetsuya Ida of one loop ago, and the reason they have different names is because Morimura and Ida removed the two of them as babies from their original sectors and placed them in Sector 4. They then transplanted their respective memories into Shu and Iori after arriving in Sector 4 post the DD-426 incident in Sector 2 in an effort to make them compatible and [[BodySurf taking over their bodies]].]]
36	** [[spoiler:All the compatibles in every loop are clones of the last 15 remaining survivors of the nanomachine plague.]]
37	** And, to make things even more confusing, the presence of virus DD-426 means that [[spoiler:some of these alternate selves have different names and personalities than their original ones since it deletes the personality and memories of the infected. Ryoko Shinonome and Ei Sekigahara are in the early stages of the infection and so they still have their own memories. Tsukasa Okino infected himself with the virus and then uploaded his own personality and memories into an AI that took over after he disappeared. Juro Izumi had his personality replaced with a new one by Tamao Kurabe and became Juro Kurabe. This also explains why their romantic pairings differ from their 2188 selves, since they're essentially different people.]]
38	* ApocalypticLog: As the story progresses, the characters unveil a lot of logs left [[spoiler:by their original selves from 2188, which help explain the state of the world. And apocalyptic it is as by that point humanity is functionally extinct and the surface of Earth lost, and the survivors are just living in the last days before their life support gives out]].
39	* ArtShift: A first for a Vanillaware title. The RealTimeStrategy segments are displayed on a holographic radar with 3D graphics instead of the usual hand-drawn sprites used for the VisualNovel segments.
40	* AsideGlance: A couple of characters have idle or talking animations in which they look directly at the camera, such as Tamao and Chihiro. Left idle, Gouto will turn away, remove his glasses, then ''glare'' back at the camera.
41	* AwardBaitSong: "[[https://www.youtube.com/watch?v=UWNzyavR2lU Seaside Vacation]]" by Hu Ito (who also provides the vocals for "Brat Overflow"), sung in wave 2-10 and the ending credits.
42	* BelligerentSexualTension: Nenji and Kisaragi are constantly at each other throats, even though it's very clear they're both attracted to each other. One of Kisaragi's skills is even called "[[SheIsNotMyGirlfriend It's Not Like That!"]] and activates if Nenji is on the team.
43	* BigBadEnsemble: [[spoiler: [[PlayingWithTropes Played with]]. Tetsuya Ida and Professor Morimura (in the body of [[TokenMiniMoe Chihiro]]) are the closest thing the story has to active antagonists, and their ideological conflict is the cause of many problems, though neither of them are actually in control of the situation — see NoAntagonist. The actual main villains of the story [[DeadAllAlong all died millennia before the story even starts]].]]
44	* BlandNameProduct: Characters discuss movies like ''[[Film/ETTheExtraTerrestrial E.X.T.]]'', ''[[Franchise/StarWars UFO Wars]]'', and ''[[Franchise/{{Terminator}} Exterminator]]''. Additionally, Yuki is seen drinking some [[https://en.wikipedia.org/wiki/Hi-C Hey-C]] juice in one scene.
45	* BodySurf: [[spoiler: Nanomachine technology in the future made it possible for people to be "mind-hacked" and having their bodies taken over. This became a huge issue in 2188 and it's what led to the extinction of humanity.]]
46	** [[spoiler: In the story itself, 426 (Juro Izumi from 2 loops before) uses this to first hijack the android body intended for the Kisaragi Tomi of 1 loop ago, then takes over Tamao's android body, and later jumps into Juro Kurabe's body. He also uses it sparingly on Megumi to manifest himself as Fluffy to her.]]
47	** [[spoiler: Morimura intended to do this to Iori to regain compatability, and 2188 Professor Morimura successfully does this to 5 year old Chihiro.]]
48	** [[spoiler:Okino does this to himself by uploading an AI version of himself onto his amnesiac body, and Sekigahara eventually agrees to this method as well to preserve his memories.]]
49	* BraggingRightsReward: Minami's ''Research Notebook'' skill gives her a large stat bonus... on any stage you've previously S-ranked. Generally, if you've previously gotten S-rank on a stage there's nothing left for you to do there besides get the bonus objective (which is usually ''easier'' than getting an S-rank).
50	* ButWhatAboutTheAstronauts: [[spoiler:The only humans to survive the nanomachine plague are a handful of Project Ark workers who were on a space station, plus at least one person who evacuated to it. They end up killing each other, but managed to complete Project Ark in the process, albeit one of them corrupted the programming.]]
51	* BrutalBonusLevel: The fights in Area 4, unlocked after finishing the game, are very difficult, and offer no tangible rewards beyond experience and Meta-Chips.
52	* CantTakeAnythingWithYou: PlayedWith, the protagonists lose their clothes when entering the cockpits of their Sentinels, but notably some characters keep some of their accessories. Iori, Yuki and Natsuno still have their hair decs, Shinonome still has bandages in her neck and head and Megumi, Tomi and Gouto all keep their glasses on. Even after TheReveal that [[spoiler:the characters are naked because they're [[PeopleJars actually in the pods they were born in]], the only way for them to see themselves until they exit those pods is via the viewscreens, which are generated within the simulation and thus [[ResidualSelfImage mesh with their digital representations in the simulation]]. Otherwise Tomi, Renya and Ryoko would each wonder why their eyesight works when they aren't wearing glasses, Nenji's hair would feel noticeably different, since he can't style his hair in the pod, Miura was obviously not ''born'' with the massive forehead scar he got in the sim, and so on. They don't mention it in the text, though.]]
53	* CastAsAMask: Most [[spoiler:different clones (or other versions) of the same people]] share voice actors, but there's one exception. [[spoiler:Shiba and Shippo/Fluffy are actually a version of Juro Izumi, and though they share a voice actor with ''each other'', he's not voiced by Juro's voice actor except when his projection looks like Juro.]]
54	* CentralTheme: Second chances and reinterpretation.
55	** The entire game is essentially [[spoiler: humanity getting a second chance after the apocalypse ruined the planet.]] Each of the protagonists [[spoiler: is a clone or A.I. version of one of the last thirteen survivors of humanity, and each protagonist acts as a second chance for the originals to mend their mistakes.]] The purpose of Sector 0 [[spoiler: is to reset the simulation and give the protagonists a chance to win the battle against the Deimos once again.]]
56	** As the story rotates between each of the thirteen perspectives, we see different sides of each character and event. For example, Yuki initially comes across as confrontational and mean, but we later see her nicer side as she interacts with Natsuno and Shu. Many of the plot twists revolve around the protagonists gaining access to new information that recontextualizes what they thought they knew. For example, [[spoiler: most of the cast is certain that some form of TimeTravel exists and that's how they get around between time periods. In reality, each time period is really a "sector" of a virtual reality simulation, and that each time they travel to the past or future, they're moving between sectors.]]
57	* CharacterTics: Each character has at least a few, usually show via their idle animations, such has Megumi [[HairFlip flipping her hair]] or Kisaragi kicking the air. Most notably Chihiro Morimura [[spoiler:shares her tic of leaning her hand on her cheek across all her other selves]].
58	* ChildhoodFriends: Several of the characters have been friends since they were children:
59	** Natsuno and Yuki have been {{Best Friend}}s since they were very small, though they got separated for a few years after Yuki's family moved.
60	** Nenji and Shu have been [[BestFriend best buds]] since middle school.
61	** Just like the above, Iori and Miwako also have been {{Best Friend}}s since middle school.
62	** Tomi has been Megumi's best and {{only friend}} since they were children.
63	** Takatoshi, Keitaro and Tamao have all been childhood friends back in the World War II era.
64	** Kurabe also remembers him and Shiba have been friends since childhood [[spoiler:but this just turns out to be a [[FakeMemories false memory.]]]]
65	** Tetsuya Ida and [[spoiler: the Tomi Kisaragi of his loop were also friends since they were children, and this becomes a ChildhoodFriendRomance after they fall in love.]]
66	* TheChosenMany: The fifteen "compatibles" (the thirteen playable characters, plus Tamao Kurabe and Tsukasa Okino) are the only ones capable of piloting the Sentinels and saving the world from the Deimos invasion. [[spoiler: This is later revealed to be because they are the only people in the virtual simulation to actually be flesh-and-blood humans, with everybody else being AI constructs. Other characters who ''were'' compatible but have transferred over from previous loops (such as Ms. Morimura and Tetsuya Ida) are no longer so, and have no way of becoming compatible again, because their bodies outside of the simulation have been destroyed.]]
67	* CloneAngst: [[spoiler: All the "compatible" are clones of the last 15 living members of humanity from original Earth, the 13 protagonists plus Okino and Tamao. Some of the characters have difficulty coming to terms with what their original is like (Ryoko is devastated to realize that her original released the Deimos to make sure Project Ark would fail, Natsuno is shocked that her original self is the daughter of the original Yuki and Takatoshi is deep in denial about his original's romantic relationship with Okino).]]
68	* ComingOutStory: Part of Takatoshi's plot arc is him coming to terms with the fact that he is attracted to the openly gay Okino.
69	* CompanyCrossReferences: The VALKYRIE canned soda is a throwback to Creator/{{Vanillaware}}'s previous game ''VideoGame/OdinSphere'', the can logo has Gwendolyn's tiara and it's accompanied with a feather that has the the same shade as her wings.
70	* ConLang: Creator/HitoshiSakimoto stated the lyrics to "Brat Overflow" were written in a made-up language.
71	* DestructiveTeleportation: [[spoiler:This is essentially the true nature of how Sector 0 and the loops work; it was originally believed by Ida and Morimura that when a loop ends, the Compatibles will all be transported to a reset version of the Sectors, fifteen years before the Deimos once again wage their attack. In Iori's route however, Morimura reveals that what ''actually happens'' is the Compatibles are copied by Universal Control as ''data'', and that data forms a new copy of themselves while the original is effectively killed. Ei, who originally considered making a loop jump to save himself from DD-426, is horrified when he realizes the implications.]]
72	* DistantFinale: [[spoiler:After the DEIMOS code is finally purged from the simulation, there's a five-year TimeSkip between the end and the epilogue, where it takes the protagonists several years to set up a proper colony and rebuild the simulated Earth.]]
73	* EarnYourHappyEnding: [[spoiler: It takes god-knows-how-long of looping, but the DEIMOS simulation is brought to heel during the game, allowing humanity to finally rebuild on a distant world using the Sentinels. Around 300 loops or around 5000 years spend in the final phase. The probes themselves carrying the genetic infomation and each with a version of Project Arc have been travelling the universe for millions of years.]]
74	* EarthAllAlong: [[spoiler:The game actually {{invert\|edTrope}}s this. The game appears to be taking place on Earth, but it's actually another planet, twenty million years in the future.]]
75	* EnsembleCast: The game features a total of 13 protagonists, each with their own intersecting storyline.
76	* EternalRecurrence: [[spoiler: This explains why there are multiple flashbacks with characters having different names and doing actions that are inconsistent with how they normally act. The protagonists are clones of people who lived in 2188 who are InsideAComputerSystem. When the Deimos destroy every sector and reach the center the facility disposes of the clones and resets the system. However, using Sector 0, the personality and memories of a clone can be stored into an AI with a simulated body inside of the simulation for the next loops. It's unknown how long the colony has been stuck in this loop, with the player knowing it happened at least three times. The "Eternal" part also ends up {{subverted\|trope}} as the resets are taking a toll on the facility and Morimura learns that the current loop will be the last one, as the final phase has taken longer than planned due to sabotage and the physical hardware is breaking down.]] The game's [[TheStinger stinger]] also shows that [[spoiler:this is likely happening on ''every'' planet that the clone probes reached, as it shows a variation on the game's opening scene, but with Nenji and Natsuno instead of Iori.]]
77	* EverybodyLives: [[spoiler:Thanks to the majority of the plot taking place [[InsideAComputerSystem within a digital simulation]], pretty much all of the characters that "died" are brought back by the end since their data was successfully saved, with the 15 survivors researching technology that can eventually let all of them be brought to the real world.]]
78	* EveryoneIsATomato: [[spoiler:The fifteen compatible teenagers are clones of long-dead humans being raised in virtual reality. All the ''other'' characters in the present are AI--including digitized copies of deceased clones.]]
79	* EveryoneMustBePaired: The game ends with the main cast having six [[OfficialCouple ironclad relationships]] ([[spoiler:Juro Kurabe/Megumi, Shu/Yuki, Nenji/Tomi, Ei/Iori, Natsuno/Miura, and Hijiyama/Okino]]) and one MaybeEverAfter ([[spoiler:Gouto/Shinonome]]). Given TheReveal that [[spoiler:the fifteen compatible are the only flesh-and-blood humans alive outside of the simulation]], that means that at the end of the main story, there is only [[spoiler:''one living human'']] who isn't in an implicit or explicit romance of some sort.
80	* FakeMemories: Several characters come to realize they've been implanted with false memories.
81	** Juro has [[spoiler: lost his memories as Juro Izumi during the battle of 2025 and was given a new identity and memories as Juro Kurabe by Ms. Morimura and Tamao Kurabe. And he's ''also'' having his memories tampered with by 426 who is posing as [[ImaginaryFriend his friend Kyuta Shiba]] through videotapes, giving him the memories of 426 from back when he was Juro Izumi.]]
82	** Ms. Morimura is [[spoiler: implanting the memories of herself and Ida on their counterparts: Iori and Shu. But due to 426's influence they only experience their memories via hazy dreams.]]
83	** In his route, Shu figures out that [[spoiler:''everyone'' has false memories when Yuki talks about her childhood and Shu realizes his childhood was exactly the same, something that is managed by Universal Control in order to keep everyone from realizing the AwfulTruth. Shu himself only managed to come to this conclusion due to Miyuki Inaba's influence.]]
84	* FailedASpotCheck: One of Shu's events shows [[spoiler:himself as Tetsuya Ida deleting 426's personality from an android after interrogating him. After leaving the room, "Tomi" then notes that the delete button had been remapped, and if Ida wasn't so worked up he'd have noticed that he actually unknowingly caused a BodySwap between the two, allowing 426 to escape.]]
85	* {{Fanservice}}: Due to being a Kamitani game, this is to be expected.
86	** [[MsFanservice Ms. Morimura]] is the biggest example, being a HeadTurningBeauty and DudeMagnet with a [[BuxomBeautyStandard very sizable chest]] that is bouncing constantly and has a tendency to wear a {{Future\|Spandex}} SensualSpandex that is very [[FormFittingWardrobe figure-hugging]], and she usually stands in a BoobsAndButtPose while wearing it.
87	** Iori Fuyusaka's gratuitous panty shots whenever she trips.
88	** Natsuno Minami wears a SchoolSportUniform that [[LegFocus exposes her legs]] for the majority of her screentime.
89	** Both Shu Amiguchi and Renya Gotou being the school {{Bishonen}} {{Chick Magnet}}s.
90	** All of the protagonists are [[OutOfClothesExperience nude while piloting their Sentinels]] with various [[ShouldersUpNudity camera angles]] for both [[FemaleGaze male]] and [[MaleGaze female]] pilots, especially Iori and Megumi who show quite a lot of {{Sideboob}} in their portraits. Ironically downplayed by MsFanservice Chihiro Morimura, who's the only character shown wearing clothes while inside a Sentinel, although the camera angle still focuses on her cleavage.
91	** [[https://youtu.be/IT6vPglf86E As shown by this video,]] each of the pilots has their ignition key implanted somewhere on their body. When they activate their Sentinel, said body part emanates a digital "START" command and they fly into the cockpit. While the boys have theirs in fairly normal spots (back of the hand for Juro, back of the wrist for Genya, back of the ankle for Ogata, etc.) each of the girls have theirs in spots that are a lot more titillating (Iori's upper thigh, Megumi's stomach, Yuki's chest, etc.).
92	** In the finale both [[spoiler:Juro and Megumi are NakedOnArrival when emerging from [[PeopleJars their pods]], with Juro {{Shirtless\|Scene}} and Megumi [[HandOrObjectUnderwear covering her breasts with her hand.]]]]
93	* FictionalCounterpart: Multiple movies are referenced within the story, but with fictionalized names. The "Deimos" film series is a clear parallel to ''Franchise/{{Godzilla}}'', and Minami mentions watching "E.X.T." multiple times in theaters, saying that it was a 1982 classic, the year that ''Film/ETTheExtraTerrestrial'' came out. Interestingly, the game doesn't do this for non-copyrited properties. In the same scene that Minami mentions "E.X.T.", she also specifically namedrops ''Literature/WarOfTheWorlds'' which, unlike ''E.T.'', is in the public domain. ClarkesThirdLaw is also directly named.
94	* FoodPorn: As it is a Vanillaware tradition, the game features various food and dishes that the characters enjoy so much and they show the food in such great detail that you'd end up feeling hungry for them. In fact, in celebration of the game's release on the Nintendo Switch, Atlus has uploaded recipes of 3 of the most popular dishes from the game, so that you can now make them and enjoy them for yourself.
95	* {{Foreshadowing}}:
96	** Early on in Juro's route, there are signs that [[spoiler:Kyuta Shiba can only be seen by Juro. During Juro's route, nobody ever seems to directly talk to Kyuta or acknowledge his presence. Meanwhile, in other character's routes, Kyuta is never seen when Juro is present.]]
97	*** Speaking of [[spoiler: Kyuta Shiba, he's introduced in Juro's prologue as being Juro's childhood friend. But Megumi's prologue, obtained not too long after this, reveals that Juro is an amnesiac from the future whose entire identity as "Juro Kurabe" was manufactured only recently. So how could Kyuta have ever been his childhood friend...?]]
98	** Juro's route also has thoughts describing movie. Most are well-known ones from real life but with the title changed or omitted, except for a film with an "iconic scene where a man teleports onto a bridge". [[spoiler:Juro ''isn't'' remembering a movie, but something that happened to Juro Izumi. Shiba had been implanting those memories into Juro Kurabe, but made them seem like movies so they could be integrated into his new personality.]]
99	** In Megumi's route there are several scenes where [[spoiler: Megumi talks to a cat thinking it's Fluffy, only for the cat not to respond. Megumi assumes Fluffy is messing with her, but it's actually a hint that Fluffy ''isn't'' the school's cat.]]
100	** Midway through Nenji's route, you discover the GroundhogDayLoop he's stuck in, where every loop ends with him talking to a voice in space, [[spoiler:is actually Tsukasa's VirtualRealityInterrogation]]. It turns out to be a microcosm for the entire story. [[spoiler:Not only is the apparent time travel elsewhere just as fake, the whole Facility is ''also'' a digital simulation the Compatible are in that was programmed by a version of Tsukasa. Nenji's end-of-loop image looks the same as when he's piloting his Sentinel because the "cockpits" are actually PeopleJars they were all incubating in.]]
101	* GameplayAndStoryIntegration: An amusing example occurs early in Iori's story. Natsuno complains how the classroom doors take a frustratingly long time to open because the school building is so old and decrepit, riffing on the large amount of dialogue and other stuff you have to get through in the previous chapter before the option to leave the room becomes available.
102	** This also applies to the Deimos. [[spoiler:They act like RTS enemies because they ''are'' RTS enemies, with Okino porting code directly from a Deimos game. The Sentinels levelling up from killing Deimos is due to 426 specifically programming in such behaviour, and the difficulty curve is a LensmanArmsRace between the two sides.]]
103	* GasLeakCoverup: Juro summoning his Sentinel in the prologue is covered up as one of these. Several other incidents involving the Sentinels get similar cover-ups such as [[spoiler:the android battle in the girl's bathroom being covered up as a "fire".]] [[spoiler:It's unknown how much this is done by Ida's Black Suits, Shikishima personnel or Universal Control itself.]]
104	* GeniusLoci: In a manner of speaking [[spoiler: the entire simulation is directed by the ambiguously sentient mainframe Universal Control, whose 'body' lays underground across the entirety of the simulation's world.]]
105	* GroundhogDayLoop:
106	** Zig-zagged, each chapter in the adventure story usually repeats the same beginning several times. However, thought cloud items acquired from previous repeats carry over, and in-game time does move forward.
107	** Played straight with Nenji's story, which has him [[spoiler: trapped in a simulation and forced to repeat his quarrel with Kisaragi again and again]].
108	** It is eventually revealed that [[spoiler:this has been happening for all sectors, because the Kaijus keep destroying all the terminals and forcing the world to reset.]]
109	* GuideDangIt: In Juro Kurabe's story, after the "A Relentless Nightmare" segment, players might get stuck on how to advance to the next segment, since there's apparently no story lock, but the percentage is stuck at around 55%. [[spoiler:It requires filling a section of the plot flowchart that isn't an official segment, namely the "Daily Life" section. First, Juro should get rid of Kyuta in the classroom by saying he has to deliver papers for Morimura. Then Juro should enter the hallway (optionally speaking with Megumi on the way) and then visit the nurse's office by exiting the hallway to the right. Then, Juro should check the documents on the nurse's desk, and also speak to Ryoko Shinonome. After progressing the scene enough, Kyuta will come into the nurse's office, and once he and Juro go home, "Daily Life" will complete, and you'll get a story lock that needs 9 characters with at least 30%-character progression each. Unlock this lock, and you can play the next segment, "48Q".]]
110	* HealThyself: You can order your pilots to perform field repairs to keep their Sentinels in fighting shape. This leaves them highly vulnerable to attack, however, so you will need to keep an eye on your enemies to avoid being attacked while defenseless.
111	* TheHeavy: While the Deimos are the main threat, they are simply mindless robots and the people responsible for the events of the plot [[spoiler: are all long dead]] leaving the role of antagonist for most of the story to [[spoiler: Tetsuya Ida who is actively trying to sabotage the attempts to save the Sectors from the Deimos. He's the one in charge of the Men in Black Suits who oppose the protagonists, manipulated Ei and Shinonome against Morimura, caused the spread of the DD-426 virus that infected the Sentinels, created the automated androids that frequently threaten the protagonists and attempts to sabotage the satellite with Miyuki Inaba so she can no longer provide assistance. His goal is to force a reset in the simulation, all so he can implant the memory of his lover Tomi Kisaragi into a new body in the next loop. He's dealt with before the FinalBattle with the Deimos by Ei and Shinonome.]]
112	** After [[spoiler:Ida dies]], TheHeavy role is taken up by [[spoiler:Chihiro, or rather, the original Professor Chihiro Morimura. While her ultimate goal is [[WellIntentioneExtremist far more benign]], as she simply wanted to get the Ark Project back on track, she is willing to kill her AlternateSelf and sacrifice the current world to make sure it happens. She's [[HeelFaceTurn eventually convinced]] to let the pilots try one last time and ends up proving vital for the defeat of the Deimos.]]
113	* HoldTheLine: Many of the Destruction missions can be cleared by simply holding on for two minutes (though time pauses when you're selecting actions), with the exception of boss battles.
114	** [[spoiler: In the final battle this is the only way to clear the mission.]]
115	* HowWeGotHere: The very first prologue ends with the start of the aptly named "Final Battle" (which comprises the entirety of the "Destruction" portion of the game); the rest of the game is about learning of the events that led to that moment.
116	* InMediasRes: The story starts right as the Deimos invasion on 1985 is beginning with the protagonists joining the battle by summoning their Sentinels. The rest of the story is told in "Remembrance Mode" in AnachronicOrder showing the events that lead to the FinalBattle against the Deimos.
117	* InterfaceScrew: While playing as Shinonome the screen can become blurry and distorted while she's having an episode and needs to take her pills.
118	* InterfaceSpoiler: The presence of the [[spoiler:event timeline, which quickly begins placing scenes in ways that don't make sense given the years that they take place, can clue players in to the fact that there is no actual time travel in the story. Lessened as a player might think that the timeline is ordered in another way, such as by a single character's perspective, or that it's ordered in whatever way makes the story most coherent…until you watch the 2188 events, which are ordered first for (at the time) no discernible reason.]]
119	* InternalRetcon: [[spoiler: This is how Universal Control deals with "inconsistencies" in the simulation, by warping reality and memories of digital entities to prevent them from discovering too much. It can't do this to the protagonists, because they're not the same as the various other digital people.]]
120	[[/folder]]
121
122	[[folder:J-Z]]
123	* JigsawPuzzlePlot: The tale begins at the end, [[InMediasRes as the characters prepare to fight the Deimos in the final battle to decide the fate of humanity]]. "Remembrance" mode, which makes up the majority of the game's playtime, details the full story leading up to this final battle, and is told through the viewpoint of thirteen playable characters, each with their own storyline that is told in anachronic order. Fortunately, the third and final mode, "Analysis", exists solely to help the player piece together the complex plot.
124	* KidHero: All of the thirteen playable characters are high-school teenagers, and are the only ones capable of piloting the Sentinels and fighting the Deimos. [[spoiler: This is because the simulation they're inhabiting has been corrupted by the Deimos code, which causes the sectors to be invaded by "kaiju" roughly fifteen years after the loop begins. Since the compatibles are only born at the start of each loop, this means they're still children every time the Deimos arrive.]]
125	* KudzuPlot: With a non-linear presentation, thirteen individual character routes, all with numerous plot twists, as well as the story-branching that can also occur on the individual routes themselves, the narrative can become overwhelming if one does not follow or consult the chronological order in-game.
126	* LawOfChromaticSuperiority: The Deimos are separated by three colors indicating their power levels. Red are the normal 1st generation Deimos, Blue Deimos are the 2nd generation EliteMook versions while Gold Deimos are [[KingMook boss versions]].
127	* LeaningOnTheFourthWall: At one point Natsuno can try to change in a locker room and starts lifting her shirt in what seems like they're setting up a {{Fanservice}} moment... only to [[AsideGlance stare at the camera]] and get spooked enough to back out of it, thinking someone could be watching.
128	* {{Leitmotif}}: A remixed version of "Brat Overflow" without lyrics plays during the final battle before fading into the version from the Title Screen. Also, remixed parts of the song can be heard throughout the scenes following the final battle during the credits.
129	* LoopholeAbuse: Morimura and Juro [[spoiler: inadvertently find out one can survive a world reset by BrainUploading themselves to Sector 0 and take advantage of that to better prepare the next loop for the next Deimos invasion.]]
130	* MandatoryMotherhood: It's mentioned the 22nd century has some kind of law requiring people (at least the ones without children) to donate their sex cells for reproductive purposes. Far from being required to ''raise'' the resulting children, [[NoBloodTies neither the donor nor the progeny is informed of their relation]]. [[spoiler:The 2188 Chihiro Morimura discovers Tsukasa Okino is her adult son only from sequencing their DNA as part of Project Ark.]]
131	* MegaCorp: Shikishima Industries. Over the course of the timeline, it's been involved in consumer appliances, military weapons, androids, space travel, and nanotechnology. They were the ones that built [[spoiler: both the Sentinels ''and'' the Deimos, and were also partly responsible for the nanomachine incident that destroyed Earth.]]
132	* TheMenInBlack: Several of these are seen in 1985, usually chasing after Ei or Natsuno. They're later revealed to be a special investigation unit under the command of Tetsuya Ida, serving as his {{Mooks}}. [[spoiler:When stranded in the UFO with Amiguchi, [[PunchClockVillain they're pretty cordial and seem like decent enough people]].]]
133	* MistakenForRomance:
134	** Happens twice with Shu. The first time, Iori stumbles across him and Juro talking in hushed tones with some InnocentInnuendo, and tells them [[MistakenForGay that it's okay as long as they love each other]], but they explain they were simply talking about their weird dreams. Later, Shu and Iori are talking like this, and Takatoshi walks past them, remarking to himself that Iori has no taste in boys.
135	** Iori believes that Ei has romantic feelings for Shinonome for some time in her route, and it's not until later that he explains to her that he and Shinonome are LikeBrotherAndSister. (In the game's early development, it was planned to be a traditional shojo love triangle.)
136	** Megumi comes to the assumption that Iori and Juro are attracted to each other having observed their hushed interactions at school, which makes Megumi [[ClingyJealousGirl extremely jealous]]. In reality, Juro and Iori are simply discussing their dreams.
137	* NecktieHeadband: A pair of background drunks in the Tsutsuji Station can be seen drunkenly wobbling around on a bench with these on their heads ignorant of the potentially world ending drama going on in front of them.
138	* NeverTheSelvesShallMeet: Downplayed. After [[spoiler: Android Tamao]] arrived at 1985, [[spoiler: Grandma Tamao was deleted by Universal Control]] to prevent two of the same person from existing in the same time. However, this was the only instance of something like this happening, and characters do meet and interact with their alternate selves throughout the story.
139	* NoAntagonist: [[spoiler: The 2188 versions of [[ImmortalitySeeker Kengo Ogata]] and [[LoveMakesYouEvil Ryoko Shinonome]], who actually caused the problem to begin with, are long dead; Tetsuya Ida is merely TheHeavy and is just as much at risk as anyone else in the simulation; and Prisoner 426 is GoodAllAlong. As a result, the only truly hostile forces are the {{Kaiju}}, who are mindless robots under the control of what's essentially a buggy video game.]]
140	* NoSell: The Composite Ceramic Armor armament passively nullifies any damage below 500, which is available for Yuki and Takatoshi's Sentinels. The Deimos [[MirrorBoss Gladiators]] and some late-game minibosses also have this.
141	* OfficialCouple: Almost every protagonist ends up with someone else by the end of the story:
142	** Juro and Megumi end up together after they live together for some time and he [[spoiler: regains some of the memories of Juro Izumi.]]
143	** Shu and Yuki become a couple and even [[spoiler: [[BabiesEverAfter have their own daughter]] by the time of the DistantFinale.]].
144	** Natsuno and Keitaro are engaged in the DistantFinale, [[spoiler: mirroring their original selves from 2188 who were also a couple.]]
145	** Iori and Ei become a couple by the end of his route and are still together in the DistantFinale.
146	** Nenji and Kisaragi pair up and apparently even [[spoiler: [[BabiesEverAfter have children of their own]] by the time of the DistantFinale]].
147	** Takatoshi and Okino also seem to be a couple by the DistantFinale which [[spoiler: also mirrors their original selves from 2188 who were lovers.]]
148	** [[spoiler: {{Averted\|Trope}} with Renya and Ryoko who are the only protagonists who are not clearly in a romance by the end of the game (although an optional conversation implies they were in a relationship at some point before Ryoko met Ida). There is some ShipTease between them in their final scene together though, as they're shown to have gotten pretty close in the five years since the end of the game, but it's more a case of MaybeEverAfter.]]
149	** [[spoiler: The Original Juro Izumi]] confesses his love to [[spoiler: Chihiro Morimura]] in the final scene before the end card.
150	* OffscreenMomentOfAwesome: The brutal physical battle between androids in the North Building girls' bathroom that absolutely trashes the place is seen entirely from Natsuno’s perspective... who spends the whole thing cowering in a bathroom stall barely able to understand what's happening.
151	* OnceMoreWithClarity: Thanks to the non-linear nature of the story, many times a scene will be revisited from a different character's point of view. How much this affects the interpretation of the story will vary from person to person.
152	* OnlyTheChosenMayPilot: The titular Sentinels can only be piloted by people injected by nanomachines called Innerlocitors, and only people who are "Compatibles" can be injected Innerlocitors in the first place, of which only fifteen characters, all teenagers, are. [[spoiler: More specifically, it's because the "Compatibles" are the only actual flesh-and-blood people in the setting.]]
153	* OnlyTheLeadsGetAHappyEnding: Played with in interesting but rather disturbing fashion. [[spoiler:EverybodyLives, but only in ''this'' loop and colony. Because overcoming DEIMOS was so difficult, many ''many'' generations of clones were killed before ever leaving their pods. What's more, there's an unknown number of machines spreading all across the universe, all corrupted by the D-Code to have an abysmal failure rate (both for each individual generation, but likely also the colonies themselves).]]
154	* OntologicalMystery: Heavy spoilers ahead. [[spoiler: At the beginning, the game looks like it's set up in late Showa era Japan, with 13 high school students defending their city against an alien invasion. But little by little more inconsistencies are revealed until it turns out that the game is really set in a completely different solar system, millions of years after the 22nd century, where the last living specimens of humanity fight across countless loops against a simulation gone rogue to save their lives.]]
155	* OrdinaryHighSchoolStudent: Most of the cast are normal high school students. [[spoiler: Subverted. Virtually all named characters have more going on than what it looks like at first glance, due to the fact that they're all clones of the last survivors of the nanomachine disaster of 2188.]]
156	* PoliticallyCorrectHistory:
157	** The 1945 characters are largely portrayed as decent, patriotic soldiers, simply fighting for their country and defending it against American invaders; both express an interest in taking the Sentinels back to their time to prevent the atomic bombings and one even wants to "take the fight to American soil." The closest thing to criticism the narrative provides is implicit, such as high-school aged young men being drafted into the military or taken out of school to work in factories. For that matter, their discomfort with later eras, while examined more deeply by the narrative, still tends to revolve around being FishOutOfTemporalWater rather than reckoning with the intense ultranationalistic fascism of their time, and how it would impact their view of, say, homosexuality or women wearing immodest clothes. Imagine a story in which a similarly-patriotic Wehrmacht soldier ends up in modern Germany and expresses a desire to prevent the collapse of Hitler's empire, and it'd be about as weird.
158	** Less problematically, in 1985, most of the young characters are very accepting of homosexuality, considering the time period.
159	** [[spoiler: Potentially subverted with TheReveal that no actual time travel is taking place and all of these time periods are simply simulations; the simulations' creators could simply have chosen to omit unsavory attributes and attitudes from the time periods in question, making this an InUniverse trope.]]
160	* TheReveal: ''Several'', the game is designed with giving at least one big reveal about a character or the plot in every character's event, usually at the end.
161	* ReincarnationRomance: Played straight, averted and even zigzagged.
162	** Straight: [[spoiler:Miura and Natsuno, as well as Takatoshi and Okino]] become couples at the end, [[spoiler:much like their original Project Ark counterparts]]. There's also an one-sided example with [[spoiler:Ryoko Shinonome, who has a crush on Tetsuya Ida (both in 2188 and in the virtual world), which sorta extends to the Ida's younger self, Shu.]]
163	** Averted: [[spoiler:Shu and Tomi, who were a couple in the previous loop, end up with Yuki and Nenji respectively in the current one.]]
164	** Zigzagged: [[spoiler:Juro Izumi and Chihiro Morimura were both in love, and it's implied this was the case for their original Project Ark selves as well, Major Izumi and Professor Morimura (if Gouto is to be believed). However, Juro Kurabe and Iori Fuyusaka, their current loop versions, end up with completely different people by the end.]]
165	* ResurrectionDeathLoop: [[spoiler:The 2188 Ryoko Shinonome sabotaged to the Facility so the cloned children will die and their simulated world will be destroyed before they can reach adulthood. The Facility then makes new clones and resets the world, which will repeat until the children manage to escape or the Facility breaks down entirely.]]
166	* RippleEffectProofMemory:
167	** Transmission to Sector 0 allows someone to survive the [[ResetButton end of a loop]] with their memories and personality intact. [[spoiler: However, Sector 0 is not a physical space, but a server for [[BrainUploading brain uploads]]. Those who go through it are recreated as an AI in the new loop, causing them to lose their Compatible status.]]
168	** A major driving force of the game's final stretch is that [[spoiler: this will no longer work, as the LotusEaterMachine the story takes place in is about to exceed its service life. By the next loop, everything would be physically rebuilt, causing Sector 0 to be wiped clean.]]
169	* RunningGag:
170	** Natsuno being told to PleasePutSomeClothesOn by characters since she's usually running around in her SchoolSportUniform.
171	** Takatoshi and Keitaro's obsession with the food of the new era they find themselves in, especially Takatoshi's [[TrademarkFavoriteFood Yakisoba pan]] and Keitaro's [[TrademarkFavoriteFood "hemborger"]]. And additionally on that note, their tendency to have words they're not familiar with mispelled in the thought cloud.
172	** Wajima and his delinquent gang getting beaten up whenever they show up, usually to show [[WorfEffect how badass the character that beat them is]].
173	** Miwako and her [[InLoveWithLove obsession with romance]] and [[GossipyHens gossip]] is a frequent source of humor.
174	** Okino [[TheTease constantly teasing]] Takatoshi on his obvious crush on him.
175	* SanDimasTime: Travel between eras is fixed to multiples of forty years. For instance, several characters from the [=80s=] are shunted to the ruined [=2020s=], spend a few days there, and return the same amount of time later. [[spoiler:[[SubvertedTrope This is actually because]] the different Sectors are parallel worlds where time passes simultaneously; they're just meant to ''look'' like different time periods.]]
176	* SceneryPorn: The game features stunning backgrounds, which is hardly a surprise, given this is developed by Creator/VanillaWare.
177	* SetRightWhatOnceWentWrong: [[spoiler: This is the reason the different sectors of the Ark are set in different time periods. To avert the mistakes that led to humanity becoming extinct in 2188, Doctor Morimura ordered the different sectors to be set at different points in history to maximize the chance of an alternate route being taken and avoid the bad decisions that ended up destroying humanity.]]
178	* ShipTease: A fair bit of it occurs between various couples -- namely, Juro and Megumi, Ei and Iori, Shu and Yuki, Nenji and Tomi, Ryoko and Tetsuya, [[StraightGay Takatoshi]] and Tsukasa, and Keitaro and Natsuno. [[spoiler:The last two pairs were [[OfficialCouple actual couples]] in 2188, and in the DistantFinale they're ''all'' actual couples with the exception of Ryoko and Tetsuya -- the former [[MaybeEverAfter may have]] ended up with Renya instead.]]
179	* ShouldersUpNudity: All the protagonists are [[OutOfClothesExperience naked when piloting their mechs]], with their portrait cutting at the shoulders to only imply nudity for the guys. To conceal the girl's breasts, Iori and Tomi both have ToplessnessFromTheBack in their screens while Shinonome, Megumi and Natsuno all have [[SceneryCensor some conveniently placed circuitry covering their chests]].
180	* ShoutOut: [[ShoutOut/ThirteenSentinelsAegisRim Click here]].
181	* SignificantDoubleCasting: Take a quick glance at the Characters page for this game and you'll see that several of the voice actors are cast as two or three different people. [[spoiler:In every case, those different people are alternate versions of or false identities used by the same singular individual.]]
182	* SkeleBot9000: The [[spoiler: androids made by Ida that are scattered across the Sectors look like skeletons made of metal, with the Kisaragi and Tamao android being the only ones that were given a human skin.]]
183	* SmashCut: Whenever a character completes a route in Remembrance, there's a fade-out and the words "To Be Continued..." appear. There's only one circumstance where this doesn't happen. [[spoiler: Once Juro Kurabe is wise to Shiba's true identity, Shiba will state that Juro needs another memory wipe. If Shiba catches Juro, the Remembrance smashes immediately to the results screen. It's quite jarring.]]
184	* TheStinger: After finishing the game and seeing the credits, a bonus cutscene unlocks showing [[spoiler:the events of the prologue playing out again, but with Nenji and Natsuno in Juro and Iori's places, implying that the story being told throughout the game is just one of countless variations playing out as the clone pods reach planets across the universe.]]
185	* TechnologyMarchesOn: {{Invoked}}. The different classes of Sentinels are based on advances to the technology they are built on, with different generations of Sentinels having different capabilities:
186	** First-generation Sentinels are melee-focused bruisers that focus on destroying enemies in close quarters.
187	** Second-generation Sentinels have more balanced capabilities, being able to engage enemies at various ranges, as well as summon support units.
188	** Third-generation Sentinels are outfitted with powerful long-range weapons, from missiles to railguns, allowing them to destroy enemies across vast distances.
189	** Fourth-generation Sentinels benefit from being able to fly, using superior mobility to provide support to allies.
190	* TerminatorImpersonator: The [[SkeleBot9000 androids]] Nenji and Kisaragi find in the ruined 2025 are clearly based on the T800, with Nenji even commenting they "Look straight out of "[[BlandNameProduct Exterminator]]"".
191	* ThinkingTic: All of the protagonists have their own unique "thinking animation" that show off their different personalities during Thought Cloud, such as Yuki [[StrokeTheBeard stroking her chin]], Keitaro crossing his arms, Shu scratching the back of his head and Gouto reading his personal notebook.
192	* ToastOfTardiness: In Iori Fuyusaka's prologue, she runs to school this way because she overslept.
193	* TowerDefense: The RealTimeStrategy portions of the game center around commanding a team of Sentinels to protect a Terminal. If the Terminal falls, it's GameOver.
194	* TimeTravel: While most of the main cast hail from the present era of UsefulNotes/The80s, some hail from a BadFuture where the Kaiju invaded, and others from the World War II era, and all come together to deal with a mutual threat. [[spoiler: Actually {{Subverted\|Trope}}. There are no real examples of Time Travel in the game and the characters are simply under the WrongAssumption it's real. The game actually takes place millions of years AfterTheEnd in a colony on a different planet, where all the characters are InsideAComputerSystem. The creators of Project Ark felt humanity should restart in an era before the incident that ruined Earth, but couldn't decide on which one, so they based the 5 residential zones (known collectively as Sectors) to look like different time periods, where each character would live until they became 20 years old and could leave the simulation: Sector 1 (2089 to 2109), Sector 2 (2049 to 2069), Sector 3 (2009 to 2029), Sector 4 (1969 to 1989) and Sector 5 (1929 to 1949). What ''looks'' like TimeTravel is simply a [[{{Teleportation}} spatial relocation]] to other Sectors inside the simulation managed by [[MasterComputer Universal Control]].]]
195	* UnusuallyUninterestingSight: Whenever a character is in their head considering keywords, if that keyword involves an item they're carrying, they'll take it out and look at it. In some cases, this can be a ''gun''. Nobody comments on this even if the character is in public. [[spoiler: This is subverted only once. In Sekigahara's route, if he considers his [[RayGun phaser]] in front of a police officer, the officer will notice and react accordingly, which is actually required to access one of his routes.]]
196	* VonNeumannMachine: [[spoiler: The Ark was designed to be one by professor Yuki Takamiya of 2188. It automatically tries to recycle the materials found in meteoroids and small planets it finds en route to its location to make more of itself, to the point it's described as "a living organism". According to the last entry in the archive, it also reached all the way to a planet more than 750 million parsecs away from RS-13α, which is a testament to the resiliency of the design.]]
197	* WhamEpisode:
198	** Natsuno's "Exterminator" route, [[spoiler: where she gets pursued by an android Tomi possessed by 426. As well, Tamao is revealed to also be an android, Natsuno is revealed to have the DEIMOS command code, and BJ is revealed to be none other than a copy of ''Miura.'']] It's to the point that completing this episode is necessary to progress in the story of at least 4 other characters due to how spoileriffic it is.
199	** Just as the player is about getting to grips with the [[JigsawPuzzlePlot time-hopping, anachronic, non-linear plot]], Keitaro's Miura's story opens with [[spoiler: a scene taking place in 2187 - even further into the future than anything the player has seen prior. To make matters even ''more'' confusing, a visit to the "Analysis" tab afterwards will reveal that this scene is chronologically the ''earliest'' part of the game's timeline.]]
200	* WhamLine: Plenty, given the non-linear nature of the game's story allowing players to stumble across major plot twists ''before'' they can be substantially foreshadowed. But there are a few standout examples:
201	** During Juro's storyline, he and Shiba bump into Keitaro, who tries to confront Juro over his accidental summoning of his Sentinel previously. Shiba remarks that it sounds like something out of a movie, and Juro agrees with him, only for Keitaro to drop this bombshell.
202	--->'''Keitaro''': Juro-kun...[[spoiler: who are you talking to?]]
203	** Megumi's storyline features a very similar twist to the above, when [[spoiler: Miwako states that the talking cat Megumi was always interacting with doesn't exist.]]
204	** In the last event of Juro's story, [[spoiler: [=426/Kyuta=] is discussing his motives, and says that with access to the greater system, every time they destroy an enemy, they'll get a prize, like scoring points. At this the player realizes that the Meta-Chips points system that's been in use throughout the Destruction mode has been ''completely in-universe''.]]
205	** Late in Natsuno's story, BJ gives us this line that throws into question everything we thought we knew about the setting.
206	--->'''BJ''': [[spoiler: This place is not Earth.]]
207	** Partway into Yuki's storyline, she witnesses Ryoko watching a video log of her older self, which begins to shed some light on [[spoiler: the origins of the Deimos]].
208	-->'''Ryoko''': [[spoiler: I have linked in parts of the terraforming project. The heavy machinery will then purge humans from all sectors. If everything goes according to plan, the final phase will be reset. [[GroundhogDayLoop And all sectors will fall into a never-ending loop.]]]]
209	* WhatMeasureIsANonHuman: [[spoiler:Outside of the 15 survivors (the 13 protagonists plus Okino and Tamao), every single [[NonPlayerCharacter NPC]] they encounter is actually a simulated personality generated by a highly advanced AI. However, [[SubvertedTrope this doesn't stop the protagonists from treating them as regular humans]], even after they find out the AwfulTruth. In the DistantFinale, five years after they successfully escaped the simulation, they reset it and go back to visit everyone, and Goto and Shinonome mention they're researching the technology to give the simulated humans real physical bodies so that they can live in the real world with the. When it comes down to it, on some level the protagonists are [=AIs=] too, just [[VirtualGhost ones based on organic humans]].]]
210	* WholePlotReference: Nenji's route veers very close to the plot of ''Film/SourceCode'': he's trapped in a GroundhogDayLoop on a train and is being ordered by a mysterious overseer to find some important item, all while intermittently cutting to his real body in some bizarre high-tech setup.
211	* WrongAssumption:
212	** Sci-fi enthusiast Natsuno encounters a mysterious robot and immediately jumps to the conclusion that it's an alien hiding from TheMenInBlack, thereby making her the star of her very own real-life science fiction movie. [[spoiler: Not only is "BJ" not an alien, but - as he reveals to her later in her storyline - Natsuno herself may very well be.]]
213	** [[spoiler: There is no TimeTravel in this game. Any time a character mistakenly believes that they have travelled through time, they've either transported to a different "sector" of the virtual reality they're inhabiting (with each sector being modelled after a different period of Earth's history), or they've skipped to the start of the next loop of the simulation by transferring their memories and personality to a new body through Sector 0.]]
214	[[/folder]]

Context VideoGame / ThirteenSentinelsAegisRim