History VideoGame / IrisuSyndrome

* EarnYourHappyEnding: The game is something Irisu plays with herself to keep calm. Score below 20k, and [[spoiler:she'll end up going berserk and most likely killing everyone. Score over 20k, and she'll tear right through the 4th wall to attack Ageha anyway... Except it turns out the whole thing is just a really weird surprise party setup by Irisu. (Although it's heavily implied she goes after Ageha anyway.) Score over 50k in the new NewGamePlus ''Metsu'' mode, and Irisu will start dressing normally, and the main characters will pose for a picture]].
** Arguably, also the case when you reach level 100 in ''Metsu''. [[spoiler:The smile she gives the camera is sweet and genuine.]]
* EndlessGame: Normal mode goes on for as long as you can endure. Metsu mode ends at level 100.
* EvolvingTitleScreen: [[spoiler:When you get the good ending, wait long enough and the background will begin to go much faster before it turns into a description of the events where Uuji murders U-tarou, written by Irisu herself. The next change happens if you unlock Metsu mode, where it shows the decapitated head of a cat on the bottom right corner of the screen. Clicking on it takes you to Metsu mode, which also changes the title screen via changing the logo to a dark red version with a darker background while Irisu is walking with her back turned. The Album option is also gone in this mode. The final change occurs when you reach Level 100 on Metsu, where Irisu is shown smiling and looking towards the screen, and the same description from before is in the background.]]

* FlashbackCut: When you unlock Metsu mode for the first time, a quick series of frames [[StartOfDarkness depicting the cause of Irisu's insanity]] appears before some exposition.[[note]]Her pet rabbit died of natural causes but was then decapiated when she was a young girl, and she later found the head by itself. This set up the later events once Irisu reached college.[[/note]]
* TheFourthWallWillNotProtectYou: [[spoiler: In the "Good Ending", Irisu proceeds to walk into the game window '''FROM THE SIDE OF YOUR DESKTOP.''']]

* GirlWithPsychoWeapon: Irisu and her nail bat[[spoiler:, which is actually bread]]. [[spoiler:... Her real weapon in darth bunnygirl mode is a sock full of rocks that she was planning to murder everyone with, the one she's holding in the title screen pictures.]]

* InsaneTrollLogic: The worst part of [[spoiler:Uuji's]] descriptions of his decisions is that you can almost... ''almost'' see the logic. It's almost... ''almost'' logical.

* MeaningfulName:
** "Irisu" is just one syllable off from, and a slight mispronunciation for, "[[Literature/AliceInWonderland Alice]]". You know, white rabbit? There is also a real disease called Alice in Wonderland Syndrome. (Automated translators such as Babelfish and Google Translate even change "Irisu" to "Alice".)
** Irisu's name is composed of the characters for "enter" and "a nest". Kind of fitting for [[ThroughTheEyesOfMadness all the insanity that takes place]].

** Good Ending (20,000+ points): [[spoiler:Irisu calms down, and instead of killing the 3 protagonists, she convinces the men to "disappear" and comes back to scare Ageha '''([[TheFourthWallWillNotProtectYou AND THE PLAYER]])''' witless. However, after a fourth wall-demolishing scene, it turns out it was all just a birthday party for Ageha. Irisu and Ageha have a heartfelt discussion. (It's insinuated she still has major issues with the cat-obsessed Ageha, given the fact that she ends up erasing her face from the photo between this and Metsu.)]]

* ShoutOut: Edogawa always wears a shirt with a design on it, each design referring to another game by the same creator. The one he wears during the camping trip is a [[NoCelebritiesWereHarmed rendition]] of the ''[[VideoGame/EarthBound Mother 2]]'' logo reading ''Ma Mo Mo'' (short for ''Maou Monogatari Monogatari''). In the "photo" in the game folder, his shirt shows the characters from ''Ototsukai'', while another shirt in the Metsu ending references ''VideoGame/AiToYuukiToKashiwaMochi''.

* EarnYourHappyEnding: The game is something Irisu plays with herself to keep calm. Score below 20k, and [[spoiler:she'll end up going berserk and most likely killing everyone. Score over 20k, and she'll tear right through the 4th wall to attack Ageha anyway... Except it turns out the whole thing is just a really weird surprise party setup by Irisu. (Although it's heavily implied she goes after Ageha anyway.) Score over 50k in the new NewGamePlus ''Metsu'' mode, and Irisu will start dressing normally, and the ThreeAmigos — now Four Amigos — will pose for a picture]].

* ThreeAmigos: Edogawa, Uuji, and Ageha, the three university students.