Yunyun Syndrome!? Rhythm Psychosis
“Yunyun Syndrome!? Rhythm Psychosis” is a rhythm adventure game about a psychotic hikikomori girl - also an avid anonymous poster - who corrupts the world with her severe brain rot from listening to too many denpa songs. Yunyun all over this ♡♡♡♡ world with your degen otaku-posting.
Offers
What are keyshops?Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Multipacks (3)
DLCs (7)
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
♥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 details
Game details
Age ratings
Game modes
Languages
Audio & text: Japanese
Text only: English, Simplified Chinese, Traditional Chinese, Korean, French, German, Portuguese - Brazil, Polish, Russian, Italian, Spanish - Spain, Spanish - Latin America, Thai, Turkish
Yunyun Syndrome!? Rhythm Psychosis price history
Lowest tracked price: £5.35 (Jul 22, 2026) · current best: £5.74 across 6 stores.
Yunyun Syndrome!? Rhythm Psychosis player count & reviews
94% positive reviews in the last 30 days (91% all-time) · ~8 new reviews/day · 293 peak players in the last 30 days.
Yunyun Syndrome!? Rhythm Psychosis — frequently asked questions
Where can I buy Yunyun Syndrome!? Rhythm Psychosis at the cheapest price?
Right now the cheapest offer for Yunyun Syndrome!? Rhythm Psychosis is £5.74 at Eneba. KingsPrice compares 9 offers from 6 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Yunyun Syndrome!? Rhythm Psychosis has ever been?
The lowest price KingsPrice has tracked for Yunyun Syndrome!? Rhythm Psychosis is £5.35 (recorded on Jul 22, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Yunyun Syndrome!? Rhythm Psychosis?
Yunyun Syndrome!? Rhythm Psychosis peaked at 293 concurrent players on Steam in the last 30 days (highest on Jul 9, 2026). The player chart on this page updates daily.
Is it safe to buy a Yunyun Syndrome!? Rhythm Psychosis Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get Yunyun Syndrome!? Rhythm Psychosis at a discount?
Create a free price alert on this page and KingsPrice will email you when Yunyun Syndrome!? Rhythm Psychosis drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
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
