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About Yunyun Syndrome!?: Rhythm Psychosis
High and vibin’ with denpa songs, we’ll corrupt the entire Internet! Hehe. all we need is a bit of otaku love, that’s all.
This is a rhythm-adventure game where you play as a hikikomori (shut-in) girl who’s high on denpa songs. Become Yunyun-brained and lose all self-control to anonymously post on social media and destroy the world with your Yunyun brain rot.
Have a Doki-Doki experience with over 30 denpa songs and multiple endings.
Q. Why did she become a hikikomori?
Q. How does anonymous online posting lead to world destruction?
Q. Does a happy ending exist for a degenerate otaku?
The answers to those “Q” s lie at the convergence of insanity and denpa psychosis.
Now, put those headphones on and become ill with Yunyun Syndrome!? Rhythm Psychosis.
⚡ Anonymously post online and infect the whole world with Yunyun-brain!
Get high on denpa songs and spread your heartful psychosis to everyone else!
⚡Characters!
・Qtie (CV:Nanahira)
The main character. A hikikomori. She suffered too much irl that she’s become a little (very) fuzzy in the head. Her obsessive love for the fictional character “Yunyun” is for sure an illness. Her overly “high” state from overdosing denpa songs causes her to propagate Yunyun love. Will there really be a happy end for such a degenerate otaku?
・Yunyun (CV:Haruko Momoi)
A fictional character that loves Qtie. A very much angelic devil. She will speak to Qtie through the monitor screen. Whilst the truth is unknown, most likely, she is just a figment of Qtie's imagination. It’s joever for her.
⚡About DenpaSongs!
Q. What is a “denpa” song?
It is a genre of music that is intentionally strange and catchy. All playable songs in this game are denpa songs.
Many popular denpa songs such as “it’s a cherry kissing explosion” (Sakuranbo Kiss) and many more are featured!
▶Original Songs
1.Denpa-tic Imaginary Girl "Q"
2.Peak Ecstasy!! Rim de Lacent☆
3.YUNYUN HARDCORE
4.???
5.???
▶Licensed Songs
6.Achichi na Natsu no Monogatari
7.Change my Style~Anata gonomi no Watashi ni~
8.Cirno's Perfect Math Class
9.CosmicKING☆sens@tion!!!!!!!!
10.Dakko Shite Gyu!
11.Gacha Gacha Cute Figu@mate
12.INTERNET OVERDOSE
13.INTERNET YAMERO
14.Kanbu de Tomatte sugu Tokeru Kyoki no Udongein
15.Kyururun Kiss de Janbo♪♪
16.Love Cheat!
17.Marisa stole the precious thing
18.Mighty Heart ~Aru Hi no Kenka, Itsumo no Koigokoro~
19.Miko Miko Nurse - Ai no Theme
20.Nee,...shiyou yo!
21.PETTAN PETTAN TSURUPETTAN
22.Princess Brave!
23.Princess Bride!
24.Raspberry
25.sakuranbokissu~bakuhatsudamo~n~
26.Senno Sakushu Tora no Maki
27.Shukusei!! Loli Kami Requiem
28.summer is machine gun
29.true my heart
30.winter is machine gun
31.MuseDashを作っているPeroPeroGamesさんが倒産しちゃったよ～
32.MEGA TSKR
33.Mecha Koi Ranman☆
34.RORO JUMP! (feat. CHiNCHiYA)
35.Strawberry Cake
36.Quit being a maid? Quit being a human?
♥Listen up!
Do you like cute anime girls? Do you like strange and catchy denpa songs? Do you wish for the death of this ♡♡♡♡ed up world? Great! Add “Yunyun Syndrome!? Rhythm Psychosis” to your WishList and stay updated for release information and updates!
Game Specifications
- Single player
- Windows
System Requirements
Windows
Minimum
- OS: Windows 10, 11 (64bit)
- Processor: Core™ i5-9400
- Memory: 8 GB RAM
- Graphics: GeForce® GTX 1050 Ti 4GB
- Storage: 3 GB available space
Recommended
- OS: OS: Windows 10, 11 (64bit)
- Storage: 3 GB available space
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Price History
Frequently asked questions about Yunyun Syndrome!?: Rhythm Psychosis
What is the cheapest price for Yunyun Syndrome!?: Rhythm Psychosis Steam key?
The cheapest redeemable Steam key currently listed is $9.65 at Eneba. The cheapest account offer is $4.59 at K4G. Account offers provide login credentials instead of a key you redeem on your own account. Prices were last checked on November 11, 2026.
View key offersWhat is the difference between key and account offers for Yunyun Syndrome!?: Rhythm Psychosis?
Gamescade currently lists 12 redeemable keys and 2 account offers. A key is redeemed on your own account, while an account offer provides access to a separate account containing the game.
View key offersWhat are the PC system requirements for Yunyun Syndrome!?: Rhythm Psychosis?
Minimum PC requirements for Yunyun Syndrome!?: Rhythm Psychosis include a Core™ i5-9400 CPU, 8 GB RAM, a GPU with GeForce® GTX 1050 Ti 4GB, and 3 GB of available storage. See the full requirements below.
What is the Yunyun Syndrome!?: Rhythm Psychosis release date?
Yunyun Syndrome!?: Rhythm Psychosis was released on April 23, 2026.
Is Yunyun Syndrome!?: Rhythm Psychosis single-player, multiplayer, or co-op?
Yunyun Syndrome!?: Rhythm Psychosis is listed as a single-player game. No multiplayer or co-op modes are currently listed.
Where can Yunyun Syndrome!?: Rhythm Psychosis offers be activated?
Current Yunyun Syndrome!?: Rhythm Psychosis key offers can be activated on Steam. Check the retailer page for region restrictions before buying.
Which platforms have active Yunyun Syndrome!?: Rhythm Psychosis deals?
Gamescade currently lists active Yunyun Syndrome!?: Rhythm Psychosis deals for PC.
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