The Ralsei Shimeji is a popular desktop pet (shimeji) based on the character Ralsei from the game Deltarune. These small animated characters wander around your computer screen, interacting with windows and performing various actions. Latest Updates (March 2026)
Recent updates to various Ralsei shimeji projects include significant improvements to animation quality and behavior:
Sprite Enhancements: Creators like 42Jellybeans on Ko-fi have updated sprites to include both hatted and hatless versions.
New Behaviors: Recent patches added throw speed-dependent landing sprites and fixed action triggers like "hotspots" where Ralsei blushes when clicked.
Core Engine Updates: The underlying shimeji program (version 1.0.21) now features a configurable splash screen and a new opacity slider for semi-transparency. Key Features of Ralsei Shimeji
Standard versions of the Ralsei desktop buddy typically include:
Dual Versions: Often available in "Calm" (standard roaming) or "Mischievous" (can throw windows and multiply) modes.
Interactive Actions: Ralsei can sit, drink tea, perform magic, sing, and spin.
Cross-Platform Support: Most versions run on Windows via Java, though mobile versions are available on the Google Play Store and App Store. Installation Requirements To run the Ralsei shimeji on a PC, you generally need:
Java Runtime Environment: Most versions require 32-bit Java, even on 64-bit systems.
File Extractor: A tool like 7-Zip or WinRAR to unpack the project files.
Executable: Double-clicking the Shimeji-ee.jar file within the extracted folder starts the program. shimeji ralsei upd
"Shimeji Ralsei Upd" typically refers to the latest update of the popular Ralsei desktop pet, a companion character based on the Deltarune series. These desktop pets (Shimejis) are animated sprites that walk, climb, and interact with windows on your computer screen. Latest Features & Updates
The most recent versions, notably by creators like 42Jellybeans, include significant improvements:
Dual Versions: Often includes both Hatted and Hatless Ralsei forms, sometimes with a "transformation" action to switch between them. Behavioral Updates: Calm: Follows your cursor, sits, or sleeps.
Mischievous: Can pick up and throw browser windows or "reproduce" (multiply) until they fill the screen.
Technical Fixes (2025–2026): Updates have focused on smoother physics, such as throw-speed-dependent landing sprites and fixed "falling speed" conditions to prevent glitches.
Interactions: Includes "ACTs" like singing, magic, and blushing when clicked. How to Use the Update
Software Requirement: You must have Java (32-bit or 64-bit depending on the specific build) installed on your PC.
Download: Most updates are found on sites like DeviantArt, Ko-fi, or the Steam Workshop for the Desktop Pet Engine.
Run: Extract the ZIP/RAR folder and run the Shimeji-ee.jar file. If the character doesn't appear, you may need to right-click the file and select "Open with Java Runtime". Where to Find Creators
42Jellybeans: Active with recent 2026 bug fixes and transformation features on Ko-fi.
Thelightsmen: Provides a popular version with "Calm" and "Mischievous" modes on DeviantArt. SomeRadioactiveWaste: Offers specific "Hatless" variations. If you'd like, I can help you: Troubleshoot why it isn't showing up on your screen. Find more characters from Deltarune like Susie or Kris. Explain how to add custom sounds or sprites. The Ralsei Shimeji is a popular desktop pet
To set up or update your Ralsei Shimeji (a "desktop buddy" that crawls around your screen), follow this guide for the standalone Windows version. This process typically involves using the Shimeji-ee (English Enhanced) engine. Prerequisites Java Runtime Environment:
Shimejis are Java-based. You must have the latest version of installed on your computer. Extraction Tool: You will need a program like
, or the built-in Windows extraction tool to open the downloaded files. Installation & Update Guide
If you have downloaded a Ralsei Shimeji UPD file, follow these general steps to get him running on your desktop:
.zip or .rar archives. You must extract the folder (do not try to run it inside the zip file).Shimeji-ee.jar or similar and double-click it. If you do not have Java installed, you will need to install the Java Runtime Environment..exe file provided in the folder. These are generally preferred for modern computers as they require no extra installation.For the uninitiated, a Shimeji is a free, open-source desktop pet application originally developed in Java. These little characters wander around your computer screen, walking along the bottom of your window, climbing up the sides, hanging from the top, and even interacting with your open windows. They can:
Originally based on a Japanese mascot character, the Shimeji engine has been repurposed by fandoms worldwide to feature beloved characters from anime, games, and webcomics. Among the most popular in recent years is Ralsei from Toby Fox’s Deltarune.
The search term shimeji ralsei upd is more than just a keyword—it’s a gateway to a better desktop experience. The original Ralsei Shimeji was charming but fragile. The updated version transforms him from a glitchy curiosity into a stable, delightful companion.
Whether you’re a long-time Deltarune fan, a collector of desktop pets, or someone who just wants to see a fluffy goat mage dangle from your browser window, downloading the latest update is essential. It’s free, it’s adorable, and it’s a testament to the passion of the fandom.
So go ahead. Find that update. Spawn your Ralsei. Let him climb your windows, steal your cursor, and bring a little bit of Dark World magic to your daily computing. Just be careful—you might end up with fifty of them.
Call to Action: Have you found an even newer version of the shimeji ralsei upd? Share your download link and custom sprites in the comments below (or on the r/Deltarune subreddit). And if you enjoyed this guide, check out our articles on Shimeji Susie and Shimeji Spamton. Happy downloading
For your Ralsei shimeji (desktop buddy), you can create a custom feature by modifying the animation frames and the character's core behavior files. Since Ralsei is known for his kindness and blushing in Deltarune, a common custom feature is a "Healing Prayer" or "Blush" interaction when the cursor stays near him. Step 1: Prepare the Visuals How to Install and Run If you have
Locate your shimeji folder: Find the img directory where your Ralsei sprites are stored.
Add new frames: Create or find a new sprite of Ralsei performing an action (like waving his scarf or blushing). Save these as .png files with transparent backgrounds.
Naming: Consistent naming (e.g., shime27.png, shime28.png) is required for the code to recognize them. Step 2: Code the Feature
You must edit the actions.xml and behaviors.xml files found in the conf folder to define how Ralsei uses these new frames.
Define an Action: In actions.xml, create a new action block that lists the frames you just added.
<Action Name="BlushAnimation" Type="Animate"> <Animation> <Frame Image="/shime27.png" Duration="10" /> <Frame Image="/shime28.png" Duration="20" /> Animation> Action> Use code with caution. Copied to clipboard
Set the Trigger: In behaviors.xml, tell the program when to trigger this action—for example, as a "Quiet" behavior that happens randomly while he is sitting. Common Ralsei Feature Ideas
Healing Prayer: Set a rare behavior where Ralsei sparkles (using animation frames) to "heal" your desktop.
Hat Toggle: Some users create separate folders for "Hatted" and "Hatless" Ralsei, allowing you to "update" his look by swapping the image files in the img folder.
Manual Drag Blush: Code him to change to a blushing sprite specifically when he is being "picked up" by your mouse cursor.