Why So Serious (WSS), Alliance Arts and WHO YOU has announced rhythm adventure game Yunyun Syndrome!? Rhythm Psychosis launches in April 2026 for PC via Steam. The game’s second official trailer was also released.
Previously, Yunyun Syndrome!? Rhythm Psychosis was delayed to winter to make room for major improvements, including full voice overs. The main cast includes Nanahira as Qtie and Haruko Momoi as Yunyun. HARDCORE TANO*C is charting all the in-game music, and KOTOKO performs the opening theme song “Denpa-tic Imaginary Girl ‘Q’.”
A Yunyun Syndrome!? Rhythm Psychosis demo is available now with 30 minutes of gameplay, including 10 denpa songs and hidden tracks. Fans can join the game’s official Discord server to give their feedback and share their excitement with other fans.
Lastly, here’s an overview of the game, via Steam:
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.
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- 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?
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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.
Groove to the DENPA!
Anonymously post online and infect the whole world with Yunyun-brain!
Get high on denpa songs and sink in the depths of social media!! Browse social media at the start of the song to check up on your Yunyun cult and haters. And then prepare for the climax where you can start dropping posts left and right. Successfully posting will cause other social media users to become psychotically Yunyun-ified. Social media is all about sharing – spread your heartful psychosis to everyone else!
Characters!
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- Qtie – 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 – 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.
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About Denpa Songs!
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!
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!
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