Most GitHub versions include the "Lite" levels, such as Stereo Madness, Back on Track, and Polargeist.
GitHub Pages projects get deleted by their owners or renamed. Try searching the repository name on GitHub again. geometry dashgithubio
Accessing unblocked game sites may violate school or workplace internet usage policies. Most GitHub versions include the "Lite" levels, such
The phrase geometry dashgithubio likely refers to the various web-based, browser-playable versions of the rhythm-platformer Geometry Dash GitHub Pages (using the .github.io such as Stereo Madness
gmdproto.github.io/geometrydash (example)