Click the download button for magic-hand-mu-editor_2.1.apk. The file size is typically between 4MB to 15MB (compilers are downloaded separately after installation).
The legitimate MagicHandMuEditor2.1.zip should have: magic hand mu editor 2.1 download
Even with a successful Magic Hand MU Editor 2.1 download, you might encounter problems: Click the download button for magic-hand-mu-editor_2
Some users archive old MU tools: