Unzip your downloaded Ralsei folder. Inside, you should see files named 0.png , 1.png , behavior.xml , etc. Rename the Ralsei folder to exactly img . Move this new img folder into the Shimeji engine folder.

Whether you want one Ralsei quietly meditating in the corner of your coding IDE or an army of fifty Ralseis dangling from the ceiling of your trading platform, the Shimeji delivers.

Go to the official Java website and download the JRE. Restart your computer after installation.

Combining the beloved character Ralsei (the Prince of Darkness from Toby Fox’s Deltarune ) with the classic Japanese desktop buddy software “Shimeji,” this fan-made creation has taken over Tumblr, Twitter, and Reddit desktops. But what exactly is a Shimeji? How do you get the Ralsei version? And why has this specific character become a mascot for desktop mischief?

Double-click Shimeji-ee.jar or Shimeji.exe . If a Java window pops up asking for permissions, click "Allow."

Unzip the Shimeji-ee folder to a permanent location (e.g., C:\Users\[You]\Desktop Buddies\Shimeji ). Do not run it from your Downloads folder.

Inside the Shimeji folder, you will see a subfolder named img . This contains the default character (usually a black-haired anime girl). Rename this folder to img_original as a backup.

The software itself is aging (Shimeji-ee hasn't been updated since 2019), but the community is alive. Dedicated fans are working on a "Shimeji 2" using Electron/JavaScript to allow for Discord Rich Presence integration (imagine your friends seeing "Ralsei is currently climbing your taskbar"). In an era of high-stress remote work and cluttered tabs, the Shimeji Ralsei is a small act of digital rebellion. He is a reminder that software can be playful, that desktops do not have to be sterile, and that a fluffy goat boy in a wizard hat has no respect for your productivity.