History NightmareFuel / Omori

** We find out that Mari [[NeverSuicide didn't hang herself]]: while practicing for their duet recital, [[RageBreakingPoint Sunny got frustrated and smashed the violin that his friends had spent months saving up for as a Christmas gift]]. She went to talk to him, and he didn't want to discuss it, in a haze that he wasn't good enough if you can uncover the hidden descriptions. Sunny tried to walk away from her; when Mari wouldn't let him leave, he pushed her down in a fit of anger. Unfortunately... she was right next to the staircase. Cue a photograph of Mari's crumpled body over the remains of the violin with her neck snapped. Sunny then [[MyGodWhatHaveIDone panicked]], ran downstairs, and [[PleaseWakeUp begged her to wake up]]. After apologizing for what he did, he puts her to bed. Sunny was all alone in the house, with neither of their parents in sight.

** Once back in White Space, you hear only a HeartbeatSoundtrack and the door back into Headspace is gone. Trying to run anywhere outside of your room just gets you teleported back into it by one of the many disembodied hands floating about. Speaking to Mewo causes her to subtlely hint that there is a way out; the only time she ever says anything besides a meow that translates to "Waiting for something to happen?" If you open the menu, you'll see a "STAB" option in menacing red font. You get the option to stab the only person in your party now -- ''[[SelfHarm yourself]]''. And you have to do this in order to wake up.

* Acquiring the Keys to fill out the Hangman Puzzle causes the music to fade out as the key takes focus on a black screen, accompanied by the oppressive tone each key emits. Acquiring the correct keys to fill in the blank causes a disembodied voice to count the remaining correct keys left. As you get closer to completion, the font of the text box gets more distorted, and the hole left by the key slowly becomes large enough to look and jump into, and past that point it's not a pretty sight.
* The bloody footprints you see at certain points in the game. They may lead to certain keys with all the horrors surrounding them, or lead you to [[EldritchAbomination Something]]. One such example occurs at the end of the Prologue, when you follow the footprints back into the Otherworld fields and suddenly your friends are gone along with the enemy encounters as you find yourself led on by a shadowy figure known as the Stranger. Continue following it and you'll come across a barn, and inside it leads you into a mirror...which dumps you into a black hallway with a portrait of a "happy family"...with their faces blacked out and bearing GlowingEyesOfDoom. As you turn back, Something suddenly appears, forcing you to run back the way you came. As you reach the entrance of the hallway, you get [[JumpScare brief flashes of Basil and his Something looming over him]], before being sent back to White Space (where you have to stab yourself again to wake up).

* In one part of Marina's sector in Humphrey, you'll come across her 667th experiment, a strange cat monster held in a large glass case. A parrot next to the case will tell you not to poke the glass, and you can follow what it says and continue on... only for the monster to suddenly ''break free from the case'' [[RunOrDie and start chasing you]]. Not only do [[BlackoutBasement the lights begin flickering and reduce your visibility]], but you'll be forced to run around hitting Humphrey bumps in order to create a path for yourselves as the monster actively hunts you down. And if it catches you, your fate isn't depicted in a cartoony fashion like it usually is: the monster opens its teeth-filled mouth wide for a second, before the screen goes black and [[SoundOnlyDeath the horrible sound of bones crunching and flesh squelching is heard]]. [[SchmuckBait Ever worse, many a player will likely end up poking the glass at the beginning and learn their lesson the hard way.]]

* Though it's lessened somewhat by the cartoony nature of it, the fight against Humphrey is actually quite disturbing. First it's a fight between an army of pink smiling blobs, [[HiveMind all of whom are the same entity.]] Then the blobs merge in to one big blob, with several of the small blobs still sticking out of it, still smiling. Then the party is eaten by the big blob and enters a chamber full of ''bones,'' while Humphrey's face and eyes manifest on the ''inside of his stomach.'' This face will repeatedly eat the party, sending them into a deeper chamber with another face, all while the lights get darker and the music gets more oppressive. And at the end of this ordeal they somehow end up in a mouth with a uvula, ''which also has Humphrey's face on it.'' It's BodyHorror and MindScrew at its finest, summed up by Omori's succinct description in the Foe Facts book:

* To the left of the stairs, there's a chance that the closet door will be visible. Normally interacting with it will cause Sunny to shake his head and reiterate that [[BlatantLies there is nothing there]], but there's a small chance that instead [[JumpScare the door will throw itself open as Something inside pulls Sunny in against his will]] before {{Smash Cut}}ting back to Sunny standing in front of the door, where it will be gone again... while this hallucination is rare in the main route, it shows that Sunny having his friends for company doesn't undo his mental health's substantial deterioration.

*** In another room, you climb up a run-down treehouse to meet Basil, and start descending. Then Basil, evidently having never seen a horror movie, [[GenreBlind suggests they use the mysterious treehouse elevator that just appeared]]. Against your better judgment, you have to listen. When the elevator ends up not moving, you exit but Basil's body gets stuck in the door. The elevator proceeds to ''decapitate him'' as he calmly asks for help and it starts moving.

** One of the doors leads you to a room filled with a red mist, floating red faces, and mirrors that shatter when interacted with. Its [[https://www.youtube.com/watch?v=Ybn__4TMGYQ "music"]] titled '''[[IronicName Friendsssssss]]''' is nothing but distorted noise. And if that doesn't make you feel unwelcome, each smashed mirror makes Omori's reflection look worse and worse, and the last one causes a photorealistic Hellmari to follow him around until he leaves.

* Even if Sunny doesn't commit suicide and moves out quietly with his mother... he's [[ThatManIsDead gone in another sense]], as that's not Sunny anymore, but [[SplitPersonalityTakeover Omori having assumed complete control]]. Sunny as a person has completely ceased to be, willingly consumed by his own alter ego whose grip on reality is loose at best. Mistakenly killing himself trying to warp back to White Space is the ''least'' destructive thing he can do; even without his Headspace powers, Omori trying to apply Headspace's rules to ''other people'' can only end badly...

*** If you linger around the RED MAZE long enough after touching the TOAST, the hanged Maris will transform again into a photorealistic variant of [[https://static.wikia.nocookie.net/omori/images/a/ac/HellMari_%28Mannequin%29.gif/revision/latest?cb=20210721105308 a smiling HELLMARI]] that shrieks at you the moment you get too close. Just seeing the thing in motion is [[UncannyValley unsettling,]] especially when you're surrounded and can't even run from them.

* The console version adds another version of the BossRush that can only be tackled if you have beaten the original boss rush and then take only Basil with you. The extra battles at the end include a fight against Kel, Aubrey, and Hero, followed by one against Mari. While the Headspace Trio is challenging, as they're a WolfpackBoss outnumbering you, Mari will refuse to lift a finger to harm you, and will even heal you... [[YouBastard And then when you "defeat" her]], [[MoodWhiplash the game abruptly cuts to Sunny and Basil staring at her hanging corpse]], both too fearful to do anything or even run. After a few rounds of futile struggling, Hellmari jumps you... and you are abruptly returned to the Boss Rush lobby. Even Omori's relentless repression will not overcome the trauma of that fateful day.

** The piano in the music room is gone, and the window casts an eerie red glow over where the piano was. You can still collide with the invisible piano, but if Sunny examines it, he monologues that there is nothing there.

** There is a random chance that seems to be increased on Hikikomori — when falling asleep during day 3 onward, Sunny can see more [[https://static.tvtropes.org/pmwiki/pub/images/marighost.png Mari-related hallucinations]].

* '''''Black Space 2'''''. This version of Black Space is only accessible in the Hikikomori Route, and it's even more bizarre and nonsensical than the original Black Space. After all, at this point in the plot, Omori has fully rejected the AwfulTruth that the original Black Space was trying to get him to acknowledge, and the new Black Space can be said to represent what's left of Sunny losing himself.

*** The console ports add an extra creepy event in the Hellmari bedroom: There's a picture on the floor that once collected causes the sleeping Sunny (who is described to be "breathing steadily") to be swapped with Mari, who ''isn't'' breathing, and makes a few other pictures appear in the nearby forest, with the screen becoming covered in black hands the longer you take to find them. Those five pictures progress from showing an [[TearJerker obscured young Sunny with the dead Mari hanging behind him to a clear shot of a lonely, tearful present-time Sunny looking pale and terrified]]. Once Omori sees that last one, the area turns pitch black and he stabs himself. He then wakes up back in the Hellmari bedroom, taking the place of the dead Sunny figment.

* The bloody footprints you see at certain points in the game. They may lead to certain keys with all the horrors surrounding them, or lead you to [[EldritchAbomination Something]]. One such example occurs at the end of the Prologue, when you follow the footprints back into the Otherworld fields and suddenly your friends are gone along with the enemy encounters as you find yourself led on by a shadowy figure known as the Stranger. Continue following it and you'll come across a barn, and inside it leads you into a mirror...which dumps you into a black hallway with a portrait of a "happy family"...with their faces blacked out and bearing GlowingEyesOfDoom. As you turn back, Something suddenly appears, forcing you to run back the way you came. As you reach the entrance of the hallway, you get [[JumpScare brief flashes of Basil and his Something looming over him]], before respawning back in White Space (where you have to stab yourself again to wake up).

* Once you actually get on the train to Orange Oasis, the train suddenly gets dark. The passengers turn into vaguely human blobs not paying real attention to you. The train goes forever, but, if you keep going left, the train at times keeps turning dark in a few seconds. This increases frequency until your party is in a battle with their first Something. Everyone in the party is Afraid... except Omori. Meanwhile, Something calls out to Sunny (not Omori) and even apologizes, but a voice accuses it of being a liar. Eventually, after you defeat it, the passengers are now TOAST.
* Orange Oasis itself is a pretty bright and friendly place, if a bit quirky while you're underground. When you've found the path to Breaven, you'll chance upon a magic circle and the opportunity to sacrifice various items to summon enemies themed on baked goods. When you sacrifice the Stray Cat, the room abruptly inverts its colors as it spawns five Hush Puppies, which are poorly-drawn dog faces screaming to die, and the silly BGM gets swapped to the same one used in the shadow fight. The effect fades away after you've killed the Hush Puppies, but it certainly is a MoodWhiplash.

* In one part of Marina's sector in Humphrey, you'll come across her 667th experiment, a strange cat monster held in a large glass case. A parrot next to the case will tell you not to poke the glass, and you can follow what it says and continue on... only for the monster to suddenly ''break free from the case'' and start chasing you. Not only do [[BlackoutBasement the lights begin flickering and reduce your visibility]], but you'll be forced to run around hitting Humphrey bumps in order to create a path for yourselves as the monster actively hunts you down. And if it catches you, your fate isn't depicted in a cartoony fashion like it usually is: the monster opens its teeth-filled mouth wide for a second, before the screen goes black and [[SoundOnlyDeath the horrible sound of bones crunching and flesh squelching is heard]]. Ever worse, many a player will likely end up poking the glass at the beginning and learn their lesson the hard way.

** One of the doors will take you to a small room with Omori's cat Mewo lying on a table, surrounded by various sharp tools. The only other NPC in the room says that Mewo has been "very bad," and one of the only things you can do there is selecting "Yes" when the game asks if you'd like to cut Mewo open. What's worse is that you're required to select it repeatedly. You get to see Mewo go from being mildly curious as to what you're doing, to [[OhCrap struggling desperately to escape out of sheer terror upon realizing what's about to happen to her]]. If you go through with it, the game will taunt you with "[[ArcWords Waiting for something to happen?]]" and you realize that you ''[[ShootTheShaggyDog didn't have to kill Mewo to proceed]]'' -- you could have stabbed yourself to escape at any point.

*** In one door, you end up a room full of spiders. After Omori frees Basil from a spider web, they travel together, and Basil slowly gets covered in tiny spiders. He tries to play it off, but [[FromBadToWorse they swarm him]], and he screams for help. The player's reaction in most iterations is to try and save Basil, but he vanishes before your eyes as if [[DevouredByTheHorde the spiders ate him]] and left nothing, not even bones. Not helping is that you encounter the corpse of a giant spider afterward.

** One of the doors leads you to a room filled with a red mist, floating red faces, and mirrors that shatter when interacted with. Its [[https://www.youtube.com/watch?v=Ybn__4TMGYQ "music"]] is nothing but distorted noise. And if that doesn't make you feel unwelcome, each smashed mirror makes Omori's reflection look worse and worse, and the last one causes a photorealistic Hellmari to follow him around until he leaves.

** We find out that Mari didn't hang herself: while practicing for their duet recital, Sunny got frustrated and smashed the violin that his friends had spent months saving up for as a Christmas gift. She went to talk to him, and he didn't want to discuss it, in a haze that he wasn't good enough if you can uncover the hidden descriptions. Sunny tried to walk away from her; when Mari wouldn't let him leave, he pushed her down in a fit of anger. Unfortunately… she was right next to the staircase. Cue a photograph of Mari's crumpled body over the remains of the violin with her neck snapped. Sunny then went MyGodWhatHaveIDone, ran downstairs, and begged her to PleaseWakeUp. He said he was sorry and put her to bed. Sunny was all alone in the house, with neither of their parents in sight.

** Then after we see the final photo of Mari's hanging corpse, it transforms into Something before the game {{Smash Cut}}s back to Basil's living room in the real world while this [[HellIsThatNoise hideous noise is droning in the background]], really communicating the sense of dread Sunny must feel now that he knows the truth and how he realizes what might happen if he doesn't confront Basil.
** [[https://imgur.com/a/YmVaYMq Datamined text tied to the photos]] show what seem to be Sunny's thoughts of the incident picture by picture, cementing just how accidental it all was. And if that wasn't bad enough, he says how it seemed like Mari was sleeping when he failed to wake her up... yet one eye was open, after she died.
** Sunny's sprite gradually becomes bloodied and disfigured as you get closer and closer to filling up the album, likely representing how he views himself as a result of his actions. By the end of it all, he looks outright demonic.

* The FinalBoss battle with Sunny versus Omori. It starts simple enough as the latter utterly [[TheReasonYouSuckSpeech tears into Sunny verbally]] about everything he's failed and how there's no hope for him, but as the fight progresses, it gradually distorts into blood, carnage, and insanity as the background becomes covered in Omori's red hands, gets a distorted Hellmari as an overlay, and ''worst of all'', adds silhouettes depicting Sunny's friends' hanging corpses in the background. The best way to describe it is trying to survive against the very personification and culmination of one's suicidal depression as it relentlessly tears you apart.

** Something will always be in the room from where you spawned. It won't move or harm you, but it will always haunt you as a representative of the guilt you didn't address.

** If you approach the stairs, there is a chance that HELLMARI will [[JumpScare charge right at you]] before the visuals glitch out and she disappears.

** The piano in the music room is gone, and the window casts an eerie red glow over where the piano was. The colision data for the piano still remains, but if Sunny examines it, he monologues that there is nothing there.

* [[https://www.youtube.com/watch?v=dL8gTTtBoNg Losing the hangman game or collecting all of the keys for the hangman shows Mari's face and SOMETHING appears and crashes the game.]]

*** The console ports have an extra creepy event in the Hellmari bedroom: There's a picture on the floor that once collected causes the sleeping Sunny (who is described to be breathing steadily") to be swapped with Mari, who ''isn't'' breathing, and makes a few other pictures appear in the nearby forest, with the screen becoming covered in black hands the longer you take to find them. Those five pictures progress from showing an [[TearJerker obscured young Sunny with the dead Mari hanging behind him to a clear shot of a lonely, tearful present-time Sunny looking pale and terrified]]. Once Omori sees that last one, the area turns pitch black and he stabs himself. He then wakes up back in the Hellmari bedroom, taking the place of the dead Sunny figment.

*** What's even scarier is that, prior to version 1.0.5, if you leave this room or stab yourself in this room, HELLMARI will still be following SUNNY when transported back to the hub. It does [[NothingIsScarier nothing but]] [[InterfaceScrew float in place]], but simply leaving Black Space does not cause HELLMARI to disappear and neither does stabbing yourself in White Space -- you must take it back to the dark room and then leave. This was patched out in 1.0.5.
* On the way up Snowglobe Mountain, the party will encounter enemies known as Snow Angels. Resembling stoic swordsmen, they look more sinister than any of the enemies previously encountered on the mountain. When they see Omori on the map screen, they make a ghastly sound and pursue him. Then once you begin fighting them, the battle music is the same droning ambience usually reserved for the dark Something-related monsters. Strangely enough, after defeating Space Ex-Husband, they go back to using the regular battle music for the area. This only happens once, however. Once you leave Snowglobe Mountain and then come back, they'll still be using the same creepy music.

*** The console ports have an extra creepy event in the Hellmari bedroom: There's a picture on the floor that once collected causes the sleeping Sunny to die and makes a few other pictures appear in the nearby forest, with the screen becoming covered in black hands the longer you take to find them. Those five pictures progress from showing an obscured young Sunny with the dead Mari hanging behind him to a clear shot of a lonely present-time Sunny looking pale and terrified. Once Omori sees that last one, the area turns pitch black and he stabs himself. He then wakes up back in the Hellmari bedroom, taking the place of the dead Sunny figment.

[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/omori_n_friends_7.png]]

* The first time Sunny is forced to confront his fear. Driven by his hunger, he's forced out of bed and has to descend the stairs. When you leave his bedroom, the area is illuminated in an eerie blue glow, and the stairs seem to extend into infinity. With each step Sunny takes, hands manifest from the sides of the screen and close in on him, culminating in a large grey one appearing behind him after he picks up the knife. You can't turn back, either, since Sunny is too hungry to think of anything else. Sunny cannot outrun this grey one, and it will abruptly crash into him when it gets close, triggering the first fight with Something, and introducing you to the "Afraid" Emotion as the battle interface fades in.

* To the left of the stairs, there's a chance that the closet door will be visible. Normally interacting with it will cause Sunny to shake his head and reiterate that [[BlatantLies there is nothing there]], but there's a small chance that instead [[JumpScare the door will throw itself open as Something inside pulls Sunny in against his will]] before [[SmashCut Smash Cutting]] back to Sunny standing in front of the door, where it will be gone again... while this hallucination is rare in the main route, it shows that Sunny having his friends for company doesn't undo his mental health's substantial deterioration.
* On a more [[RealismInducedHorror realistic]] note, Aubrey's house is absolutely filled with trash, to the point where it literally blocks access to her mother's room. Said mother just sits in front of the living room TV, absolutely unresponsive to external stimuli, like, say, several children she doesn't know coming in.

** One of the doors will take you to a small room with Omori's cat Mewo lying on a table, surrounded by various sharp tools. The only other NPC in the room says that Mewo has been "very bad," and one of the only things you can do there is selecting "yes" when the game asks if you'd like to cut Mewo open. What's worse is that you're required to select it repeatedly. You get to see Mewo go from being mildly curious as to what you're doing, to struggling desperately to escape out of sheer terror upon realizing what's about to happen to her. If you go through with it, the game will taunt you with "[[ArcWords Waiting for something to happen?]]" and you realize that you [[ShootTheShaggyDog didn't have to kill Mewo to proceed]] -- you could have stabbed yourself to escape at any point.

* The [[https://youtu.be/KJnHvCYVlDY?t=76 One Day Left]] title screen has a blood-red background, high-pitched ringing as "music", and Omori glitching into Sunny and vice versa.
* Basically ''everything'' to do with the reveal of what really triggered the story four years prior to its start, and especially the [[DeathGlare conclusion]] that results in the "birth" of [[EldritchAbomination Something]].

** Then after we see the final photo of Mari's hanging corpse, it transforms into Something before the game [[SmashCut Smash Cuts]] back to Basil's living room in the real world while this [[HellIsThatNoise hideous noise is droning in the background]], really communicating the sense of dread Sunny must feel now that he knows the truth and how he realizes what might happen if he doesn't confront Basil.

** If you enter Sunny's bedroom, there's a chance that strands of hair will hang over Sunny's bed. There is also a chance that someone, or something, is sleeping in Sunny's bed, blocking access to Headspace, and forcing the player to leave and re-enter the room to make it go away.

* The console version adds another version of the BossRush that can only be tackled if you have beaten the original boss rush and then take only Basil with you. The extra battles at the end include a fight against Kel, Aubrey, and Hero, followed by one against Mari. While the Headspace Trio is challenging, as they're a WolfpackBoss that outnumbers you, Mari will refuse to lift a finger to harm you, and will even heal you... [[YouBastard And then when you "defeat" her]], [[MoodWhiplash the game abruptly cuts to Sunny and Basil staring at her hanging corpse]], both too fearful to do anything or even run. After a few rounds of futile struggling, Hellmari jumps you... and you are abruptly returned to the Boss Rush lobby. Even Omori's relentless repression will not overcome the trauma of that fateful day.

* To the left of the stairs, there's a chance that the closet door will be visible. Normally interacting with it will cause Sunny to shake his head and reiterate that [[BlatantLies there is nothing there]], but there's a small chance that instead [[JumpScare the door will throw itself open as Something inside pulls Sunny in against his will]] before [[SmashCut Smash Cutting]] back to Sunny standing in front of the door, where it will be gone again... while this hallucination is rare in the main route, it shows thatSunny having his friends for company doesn't undo his mental health's substantial deterioration.

** One of the doors will take you to a small room with Omori's cat Mewo lying on a table, surrounded by various sharp tools. The only other NPC in the room says that Mewo has been "very bad," and one of the only things you can do there is selecting "yes" when the game asks if you'd like to cut Mewo open. What's worse is that you're required to select it repeatedly. You get to see Mewo go from being mildly curious as to what you're doing, to struggling desperately to escape out of sheer terror upon realizing what's about to happen to her. And after all that, the only way to escape back to Black Space is to stab yourself, making it one of the few, if not ONLY rooms in the area that require you to do so. What's worse is if you didn't know you could just stab yourself to escape without killing Mewo at all.

* To the left of the stairs, there's a chance that the closet door will be visible. Normally interacting with it will cause Sunny to shake his head and reiterate that [[BlatantLies there is nothing there]], but there's a small chance that instead [[JumpScare the door will throw itself open as Something inside pulls Sunny in against his will]] before [[SmashCut Smash Cutting]] back to Sunny standing in front of the door, where it will be gone again... while this hallucination is rare in the main route, it shows that even if he has his friends, Sunny’s mental health is still deteriorating.

* The fight between Basil and Sunny already has an unnerving start as Basil goes completely insane, manifesting his Something while Sunny's own Something keeps him from leaving. All your skills are countered by an oppressive force interrupting you, leaving you with no choice but to fight, and the new "Energy" meter isn't so much a meter for a super attack as it is a measure of his ''stress'', appearing as an EKG that gets faster as it builds up. When it hits maximum, shit truly hits the fan when Sunny adopts the unique '''Stressed Out''' emotion, and the EKG twists into cursive writting that reads a [[ArcWords chillingly familiar phrase]]:
-->'''''"Everything is going to be okay"'''''
** This culminates in Basil [[EyeScream stabbing Sunny through the eye]], complete with the right half of the screen going black and Sunny's eye in his battle headshot bleeding profusely.
** The very premise of [[FightingYourFriend Sunny's flower boy friend attacking him like that]] is absolutely horrifying. Just… what the hell was Basil thinking at that moment? Thinking Sunny's eye was his Something? Worse, did Basil impulsively intend to injure Sunny (''at best'') so permanently?

*** If you linger around the RED MAZE long enough after touching the TOAST, the hanged MARIs will transform again into a photorealistic variant of [[https://static.wikia.nocookie.net/omori/images/a/ac/HellMari_%28Mannequin%29.gif/revision/latest?cb=20210721105308 a smiling HELLMARI]] that shrieks at you the moment you get too close. Just seeing the thing in motion is [[UncannyValley unsettling,]] especially when you're surrounded and can't even run from them.

* Checking a floating mirror will display a reflection of Omori with his smiling friends behind him. Rarely, [[https://www.youtube.com/watch?v=XjyIP5g7Qlc the text box won't appear]] (see 0:36) and [[https://i.imgur.com/sCsrLDk.png all the kids in the reflection]] will [[NightmareFace flash distorted smiles]] (pictured above) as the scene cuts away.
** If Sunny checks a mirror, he'll likewise find apparitions lurking right behind him. Most of those are variations of Something standing next to him or watching from outside the room, but it's possible to see Mari's ghost either towering over Sunny from behind or standing next to him with a ghastly bent head right after a JumpScare of [[ShmuckBait slooooowly opening the front door when she asks]].
* [[https://www.youtube.com/watch?v=dL8gTTtBoNg Losing the hangman game or collecting all of the keys for the hangman shows Mari's face and SOMETHING appears and crashes the game.]]
* The fight between Basil and Sunny already has an unnerving start as Basil goes completely insane, manifesting his Something while Sunny's own Something keeps him from leaving. All your skills are countered by an oppressive force interrupting you, leaving you with no choice but to fight, and the new "Energy" meter isn't so much a meter for a super attack as it is a measure of his ''stress'', appearing as an EKG that gets faster as it builds up. When it hits maximum, shit truly hits the fan when Sunny adopts the unique '''Stressed Out''' emotion, and the EKG twists into cursive writting that reads a [[ArcWords chillingly familiar phrase]]:
-->'''''"Everything is going to be okay"'''''
** This culminates in Basil [[EyeScream stabbing Sunny through the eye]], complete with the right half of the screen going black and Sunny's eye in his battle headshot bleeding profusely.
** The very premise of [[FightingYourFriend Sunny's flower boy friend attacking him like that]] is absolutely horrifying. Just… what the hell was Basil thinking at that moment? Thinking Sunny's eye was his Something? Or did Basil impulsively intend to injure Sunny (''at best'') so permanently?

* The [[https://youtu.be/KJnHvCYVlDY?t=76 One Day Left]] title screen has a blood-red background, high-pitched ringing as "music", and Omori glitching into Sunny and vice versa.
* One of the endings for the Hikkikomori route, and perhaps the "best" ending for it possible, is that Sunny doesn't commit suicide and moves out quietly with his mother... but that doesn't mean he's [[ThatManIsDead not dead in another sense]], as that's not Sunny anymore, but [[SplitPersonalityTakeover Omori having assumed complete control]]. Sunny as a person has completely ceased to be, willingly consumed by his own alter ego whose grip on reality is loose at best. Mistakenly killing himself trying to warp back to White Space is the ''least'' destructive thing he can do; even without his Headspace powers, Omori trying to apply Headspace's rules to ''other people'' can only end badly...
* A datamined picture called [[https://imgur.com/a/eHtOpth "nowyouknow.png"]] shows Sunny waking up with really scared detailed eyes that verge on UncannyValley, considering his normal blank expressions. It's believed to be an unused picture of his reaction to recovering his repressed memories.
* If you're on the [[SanitySlippage Hikikomori route]] on "One Day Left...", try stabbing yourself and walking around Sunny's house. The hallucinations that Sunny usually experiences here are even worse:

** To the left of the stairs, there's a chance that the closet door will be visible. Normally interacting with it will cause Sunny to shake his head and reiterate that [[BlatantLies there is nothing there]], but there's a small chance that instead [[JumpScare the door will throw itself open as Something inside pulls Sunny in against his will]] before [[SmashCut Smash Cutting]] back to Sunny standing in front of the door, where it will be gone again... even worse, unlike the other events listed, this can happen in the main route, meaning that even if he has his friends, Sunny’s mental health is still deteriorating.

* The FinalBoss battle with Sunny versus Omori. It starts simple enough as the latter utterly [[TheReasonYouSuckSpeech tears into Sunny verbally]] about everything he's failed and how there's no hope for him, but as the fight progresses, it gradually distorts into blood, carnage, and insanity as the background becomes covered in Omori's red hands, gets a distorted Hellmari as an overlay, and ''worst of all'', adds silhouettes depicting Sunny's friends' hanging corpses in the background. The best way to describe it is trying to survive against the very personification and culmination of one's suicidal depression as it relentlessly tears you apart.
** What hammers it home is that not only is ''[[HopelessBossFight the fight unwinnable]]'', but unlike most games with similar psychological themes, Omori has no abominable/monstrous OneWingedAngel form to change into, even as his image is bloody and distorted. Omori ''is'' Sunny, and Sunny cannot destroy his inner self and live. The only way to placate it is by refusing to give up and accepting his mistakes. Even if he's overcome them, his trauma and guilt will always be a part of him.
** The sixth and final phase of the boss fight against Omori adds distorted sound effects to the music that are meant to sound like Mari screaming and falling down the stairs.
* On the way up Snowglobe Mountain in the Hikikomori Route, the party will encounter enemies known as Snow Angels. Resembling stoic swordsmen, they look more sinister than any of the enemies previously encountered on the mountain. When they see Omori on the map screen, they make a ghastly sound and pursue him. Then once you begin fighting them, the battle music is the same droning ambience usually reserved for the dark Something-related monsters. Strangely enough, after defeating Space Ex-Husband, they go back to using the regular battle music for the area. This only happens once, however. Once you leave Snowglobe Mountain and then come back, they'll still be using the same creepy music.
* The console version adds another version of the BossRush in the Hikikomori Route that can only be tackled if you have beaten the original boss rush and then take only Basil with you. The extra battles at the end include a fight against Kel, Aubrey, and Hero, followed by one against Mari. While the Headspace Trio is challenging, as they're a WolfpackBoss that outnumbers you, Mari will refuse to lift a finger to harm you, and will even heal you... [[YouBastard And then when you "defeat" her]], [[MoodWhiplash the game abruptly cuts to Sunny and Basil staring at her hanging corpse]], both too fearful to do anything or even run. After a few rounds of futile struggling, Hellmari jumps you... and you are abruptly returned to the Boss Rush lobby. Even Omori's relentless repression will not overcome the trauma of that fateful day.
* Omori's Happy expression looks [[UnintentionalUncannyValley pretty creepy]], likely because outside of battle, [[PerpetualFrowner he's always shown with a subtle frown]]. He looks even more freakish when he becomes Ecstatic, looking less sincerely-elated and [[TheUnSmile more like]] a SlasherSmile. And when he turns Manic, he starts ''drooling''.

*** In one door, you end up a room full of spiders. After Omori frees Basil from a spider web, they travel together, and Basil slowly gets covered in tiny spiders. He tries to play it off, but [[FromBadToWorse they swarm him]], and he screams for help. The player's reaction in most iterations is to try and save Basil, but he vanishes before your eyes as if the spiders ate him and left nothing, not even bones. Not helping is that you encounter the corpse of a giant spider afterward.

*** The last room reunites him with Hero, Aubrey, and Kel, but Hero is eerily quiet while leading you down the room. When you escort Basil to the rest of the party, Kel pelts Basil with several balls and Aubrey brutally smashes his head in, while Omori and Hero just stand by and watch. Everything at that point is distorted -- The tiles are incoherent, Omori's friends have over-saturated portraits and only repeat lines from the very beginning of the game, the Big Yellow Cat in the back wall has a ThousandYardStare that [[AsideGlance pierces through the screen]], and the BackgroundMusic is a [[https://www.youtube.com/watch?v=FT4cMYqiOng malfunctioning]] version of "Lost At A Sleepover" with an occasional LastNoteNightmare.

** This culminates in Basil [[EyeScream stabbing Sunny through the eye,]] complete with the right half of the screen going black and Sunny's eye in his battle headshot bleeding profusely.
** The very premise of [[FightingYourFriend Sunny's flower boy friend attacking him like that]] is absolutely horrifying. Just... what the hell was Basil thinking at that moment? Thinking Sunny's eye was his Something? Or did Basil impulsively intend to injure Sunny (''at best'') so permanently?

** We find out that Mari didn't hang herself: while practicing for their duet recital, Sunny got frustrated and smashed the violin that his friends had spent months saving up for as a Christmas gift. She went to talk to him, and he didn't want to discuss it, in a haze that he wasn't good enough if you can uncover the hidden descriptions. Sunny tried to walk away from her; when Mari wouldn't let him leave, he pushed her down in a fit of anger. Unfortunately...she was right next to the staircase. Cue a photograph of Mari's crumpled body over the remains of the violin with her neck snapped. Sunny then when MyGodWhatHaveIDone, ran downstairs and begged her PleaseWakeUp. He said he was sorry and put her to bed. Sunny was all alone in the house, with neither of their parents in sight. 
** Sweet Basil ended up being the one to cover up Mari's accidental death. While Sunny was watching over Mari's corpse in her bed, he ordered Sunny to bring Mari outside, and to get the jumprope. It was his idea to hang her body from a tree. Even when Basil talks with Sunny about it before his boss fight, he's at a loss for why he thought it was a good idea.  

** Sunny's sprite gradually becomes bloodied and disfigured as you get closer and closer to filling up the album, likely representing how he views himself as a result of his actions. By the end of it all he looks outright demonic.
** Near the end you're placed in a room that contains a mirror. Looking into it after collecting the photo in that room lets you get [[https://imgur.com/a/Tef4bX8 a better look]].

** Looking into the mirror reflects Omori back in all of his monochrome glory instead of Sunny, signifying that [[ThatManIsDead Sunny is gone for good.]] If it's nighttime, the image is darker and blue-tinted.

** There is a random chance that seems to be increased on Hikkikomori- when falling asleep during day 3 onward, Sunny can see more [[https://static.tvtropes.org/pmwiki/pub/images/marighost.png Mari related hallucinations]].
** To the left of the stairs, there's a chance that the closet door will be visible. Normally interacting with it will cause Sunny to shake his head and reiterate that [[BlatantLies there is nothing there]], but there's a small chance that instead [[JumpScare the door will throw itself open as Something inside pulls Sunny in against his will]] before [[SmashCut Smash Cutting]] back to Sunny standing in front of the door, where it will be gone again... even worse unlike the other events listed this can happen in the main route meaning that even if he has his friends Sunny’s mental health is still deteriorating.
* '''''Black Space 2'''''. This version of Black Space is only accessible in the Hikkikomori Route, and it's even more bizarre and nonsensical than the original Black Space. After all, at this point in the plot, Omori has fully rejected the AwfulTruth that the original Black Space was trying to get him to acknowledge, and the new Black Space can be said to represent what's left of Sunny losing himself.
** Its take on the Playground area. There's a "Pinata Guy" cheerfully spinning around!... and also disembodied heads of Omori buried into the ground. Entering one of them shows Sunny asleep in his bedroom and the HELLMARI stretching her neck out of his bed's headboard. The other accessible head reveals a long corridor where Aubrey, Kel and Hero silently avoid Omori by walking backwards.

* The FinalBoss battle with Sunny versus Omori. It starts simple enough as the latter utterly [[TheReasonYouSuckSpeech tears into Sunny verbally]] about everything he's failed and how there's no hope for him, but as the fight progresses it gradually distorts into blood, carnage and insanity as the background becomes covered in Omori's red hands, gets a distorted Hellmari as an overlay, and ''worst of all'', adds silhouettes depicting Sunny's friends' hanging corpses in the background. The best way to describe it is trying to survive against the very personification and culmination of one's suicidal depression as it relentlessly tears you apart.
** What hammers it home is that not only is ''[[HopelessBossFight the fight unwinnable]]'' but, the entire time, unlike most games with similar psychological themes, Omori has no abominable/monstrous OneWingedAngel form to change into, even as his image is bloody and distorted. Omori ''is'' Sunny, and Sunny cannot destroy his inner self and live. The only way to placate it is by refusing to give up and accepting his mistakes. Even if he's overcome them, his trauma and guilt will always be a part of him.

* The console version adds another version of the BossRush in the Hikikomori Route that can only be tackled if you have beaten the original boss rush and then take only Basil with you. The extra battles at the end include a fight against Kel, Aubrey, and Hero, followed by one against Mari. While the Headspace Trio is challenging as they're a WolfpackBoss that outnumbers you, Mari will refuse to lift a finger to harm you, and will even heal you... [[YouBastard And then when you "defeat" her]], [[MoodWhiplash the game abruptly cuts to Sunny and Basil staring at her hanging corpse]], both too fearful to do anything or even run. After a few rounds of futile struggling, Hellmari jumps you... and you are abruptly returned to the Boss Rush lobby. Even Omori's relentless repression will not overcome the trauma of that fateful day.

** What hammers it home is that not only is ''[[HopelessBossFight the fight unwinnable]]'' but, the entire time, unlike most games with similar psychological themes, Omori has no abominable/monstrous form to change into, even as his image is bloody and distorted. Omori ''is'' Sunny, and Sunny cannot destroy his inner self and live. The only way to placate it is by refusing to give up and accepting his mistakes. Even if he's overcome them, his trauma and guilt will always be a part of him.

* The FinalBoss battle with Sunny versus Omori. It starts simple enough as the latter utterly [[TheReasonYouSuckSpeech tears into Sunny verbally]] about everything he's failed and how there's no hope for him, but as the fight progresses it gradually distorts into blood, carnage and insanity as the background becomes covered in Omori's red hands, gets a distorted Hellmari as an overlay, and ''worst of all'', adds silhouettes depicting Sunny's friends' hanging corpses in the background. The best way to describe it is trying to survive against the very personification and culmination of one's suicidal depression as it relentlessly tears you apart. What hammers it home is that not only is ''[[HopelessBossFight the fight unwinnable]]'' but, the entire time, unlike most games with similar psychological themes, Omori has no abominable/monstrous form to change into, even as his image is bloody and distorted. Omori ''is'' Sunny, and Sunny cannot destroy his inner self and live. The only way to placate it is by refusing to give up and accepting his mistakes. Even if he's overcome them, his trauma and guilt will always be a part of him.

* The FinalBoss battle with Sunny versus Omori. It starts simple enough as the latter utterly [[TheReasonYouSuckSpeech tears into Sunny verbally]] about everything he's failed and how there's no hope for him, but as the fight progresses it gradually distorts into blood, carnage and insanity as the background becomes covered in Omori's red hands, gets a distorted Hellmari as an overlay, and '''worst of all''', adds silhouettes depicting Sunny's friends' hanging corpses in the background. The best way to describe it is trying to survive against the very personification and culmination of one's suicidal depression as it relentlessly tears you apart. What hammers it home is that not only is ''[[HopelessBossFight the fight unwinnable]]'' but, the entire time, unlike most games with similar psychological themes, Omori has no abominable/monstrous form to change into, even as his image is bloody and distorted. Omori ''is'' Sunny, and Sunny cannot defeat his inner self. The only way to placate it is by refusing to give up and accepting his flaws. Even if he's overcome them, his trauma and guilt will always be a part of him.

%%
%% No Fridge Horror, please.

*** The entire premise of what happens to Sunny's eye is unbelievably horrifying. Not only is he stabbed through the eye, he's stabbed through the eye with a pair of ''[[ShearMenace garden shears]]''. On top of how ''extremely painful'' it would have been, Sunny is likely going to need to wear an eyepatch or a glass eye for the rest of his life. Keep in mind that at this point Sunny is still just a ''high schooler''.