Alternate method by @Ricky-Jan: https://scratch.mit.edu/projects/1374534307/ DISCLAIMER: NEVER COPY CODE OFF OF THE INTERNET UNLESS YOU KNOW WHAT IT DOES!! I'm not exactly sure what shadow blocks are, but they can often be safely deleted from Scratch projects without breaking your code or ruining anything. In some huge projects (take my game Compass III: Vagabond for example, which has over 33,000 blocks), shadow blocks can duplicate themselves or be left behind as trash in the project.json file, taking up a lot of the 5 MiB (5.24 MB) data limit. The HTML file inside this project was written by AI to remove those redundant blocks, allowing large projects more space for actual content. If you use this, be sure to back up your project in case something goes wrong. I haven't had any problems with it, but you never know. This tutorial was made using Windows 11. Sorry if you're not using Windows 11 :| Code credit: Microsoft Copilot Music credit: "Oasis" by @ceIIs @Vadik1's Minimizer tool: https://xeltalliv.github.io/ScratchTools/ProjectJsonMinimizerNew/