Choose between "Calm" (just hangs out) and "Mischievous" (multiplies and throws your windows!). How to Download & Use: Install Java:
However, the original Shimeji Ralsei releases had limitations: limited animations, no hat-off variants, or bugs with newer versions of Windows and macOS. This is where the comes into play.
If you’ve spent any time in the Deltarune fandom on Twitter, Tumblr, or Discord, you’ve likely seen screenshots of a tiny, hooded goat prince crawling across someone’s desktop, stealing their mouse cursor, or multiplying into an adorable army. That phenomenon is the , and if you’ve been searching for the latest version—specifically the shimeji ralsei upd (update)—you’ve come to the right place.
So "Shimeji Ralsei" could be a fan-made concept or a crossover. The "upd" part likely stands for "update", maybe a new version or mod of a game or artwork. The user might be looking for content related to an update involving these two characters. shimeji ralsei upd
Ralsei Shimeji is a "desktop buddy" or digital pet that wanders around your computer screen, based on the character Ralsei from the game
To truly appreciate this specific Shimeji, you need to know the character that inspired it.
Open the folder and double-click Shimeji-ee.exe (for Windows). Choose between "Calm" (just hangs out) and "Mischievous"
The Shimeji Ralsei UPD has become a cultural phenomenon, particularly among fans of Danganronpa and food enthusiasts. The dish represents a fusion of gaming culture and culinary creativity, two seemingly disparate worlds that have come together to create something truly unique.
A (often called a desktop buddy or screen pet) is a small, Java-based application that allows animated characters to freely roam your monitor. The Ralsei Shimeji mimics his exact in-game personality. Depending on the specific sprite pack you download, your little Ralsei buddy will: Walk along the bottom taskbar Climb up the sides of your open windows Sit down and read books or sip tea Multiply over time to create a tiny army of fluffy boys Trip, fall, and look adorable while doing so Key Content in the Ralsei Shimeji Update (UPD)
You right-clicked the Shimeji icon in your system tray. You selected “Exit.” If you’ve spent any time in the Deltarune
The December 2025 update focused heavily on polish, fixing long‑standing issues that made the Shimeji feel less responsive than it should have been. Key changes included:
This is where things got… Shimeji-like.
Once downloaded, the folder should contain:
Beyond basic movement, the pack includes several special actions that bring Ralsei’s personality to life: