Yunyun Syndrome!? Rhythm Psychosis will be released in April 2026

In this rhythm adventure, players will ride a wave of catchy dempa songs.

Yunyun Syndrome!? Rhythm Psychosis is a rhythm adventure where players take on the role of a hikikomori girl obsessed with dempa songs. Lose yourself in the rhythm as the main character anonymously posts on social media and destroys the world with her music-fueled mind. The game combines a Doki-Doki experience with over 30 dempa songs and multiple endings.

Dempa is a deliberately bizarre and catchy music genre. All songs available for play are composed in this style. The game features a variety of popular dempa songs.

The demo for Yunyun Syndrome!? Rhythm Psychosis has surpassed 150,000 downloads. An update has also been released for the demo. New features include an online leaderboard, additional difficulty levels, and automatic audio sync adjustment, as well as general improvements.