Maya didn't just save her game. She learned something deeper: that behind the colorful blocks, Scratch files were just folders and text. A tool like sb3utility (which she later used to batch-export all 48 costumes for a fan art contest) turned her from a user into a builder.
She posted a short tutorial on the Scratch forums: "How to fix a corrupt project without crying (much)." It got 200 stars.
And when a younger coder messaged her—"My game won't open. Help?"—Maya replied with two words:
"Unzip the JSON."
She had become the utility.
Master the Basics: A Beginner's Guide to SB3Utility (SB3UGS)
If you have ever wanted to dive into modding Illusion games like , you have likely heard of SB3Utility (often called
). While modern tools like Unity Editor are popular, SB3UGS remains the ultimate powerhouse for directly modifying asset bundles. sb3utility tutorial
Here is a quick-start blog post to help you get your first mod up and running. 1. Set Up Your Toolkit Before you start, you need the right tools: SB3Utility : Download the latest version from the official GitHub repository Unity Editor : Many games require a specific version (e.g., uses 5.6.2f1) to ensure compatibility. 2. The Core Workflow
The most effective way to learn is through the "Production Cycle" method: : Use SB3Utility to open an existing file from the game's
: Export the asset you want to change (like a texture or mesh) to your 3D editor (e.g., Blender).
: Make a small, obvious change—like shifting a vertex or changing a texture color. Import & Replace
: In SB3UGS, import your modified file and replace the original asset within the bundle. File > Save .unity3d . The tool will automatically create a backup for safety. 3. Practical Example: Editing a Texture Want to change a character's eyes? Open the relevant asset bundle (e.g., chara/mt_eyeline_up_00.unity3d Navigate to the texture entry. Replace the existing texture with your custom
Save and test it in the game's poser mode to see your results immediately. Why SB3Utility?
While it has a steeper learning curve than simple extractors like AssetStudio, SB3UGS allows you to edit and write back Maya didn't just save her game
SB3Utility (often called ) is a powerful tool primarily used for modding Illusion games (like Honey Select
). It allows you to extract, edit, and replace meshes, textures, and animations within 1. Basic Setup & Interface Opening Files : Drag and drop your files directly into the SB3Utility window. Navigation tab to find assets by name or type. Use the buttons on the toolbar for quicker navigation. Saving Changes : Always use File > Save .unity3d
) to apply your edits. The tool usually creates a backup copy automatically. 2. Texture Editing Guide Locate the Asset : Open the relevant file (e.g., a character's eyeline or outfit file). : Select the texture in the list, click the button, and choose your format (typically
: Open the exported image in software like Photoshop or GIMP. : In SB3Utility, select the original texture and click to import your edited version. : Save the file to see the changes in-game. 3. Mesh & Model Replacement
The general "Production Cycle" for 3D modeling follows these steps: : Go to the tab, select your mesh, and export it as an Metasequoia (.mqo) : Modify the model in (v2.9+ recommended) or Metasequoia. : Drag the saved mesh back into SB3Utility. tab and select the original mesh. Goto Frame
Drag your new imported mesh over the highlighted mesh in the "Imported Mesh" section. Fix Normals : Click the
button in the Mesh tab to ensure the lighting looks correct. 4. Working with Animations SB3UtilityGUI User Guide | PDF - Scribd The tutorial's fix was manual but clear:
The tutorial's fix was manual but clear:
Maya took a deep breath. She unzipped the folder completely. Inside costumes/, she found star_vortex_03.svg (the ZIP had automatically changed the slash to an underscore—but Scratch's internal JSON still wanted a slash).
She renamed the file to star_vortex_03.svg (no slash, no issue). Then she opened project.json again, searched for "star/vortex", and changed it to "star_vortex_03.svg".
The tutorial said: Make sure every asset listed in project.json actually exists in the folder.
She checked all 48 costumes. All present. All safe names.
Always back up your game’s original archive files before editing. Copy the entire abdata folder or specific .unity3d files to a safe location.