"cube_jump_demo" was a supposed game developed by an anonymous company. The company went bankrupt, leaving only this demo. The date of the demo's creation is unknown. Uploaded and restored by lowqualitypotato, the third level was unfinished, leaving a placeholder level along with it a placeholder theme. The UI seems like a placeholder, too. We never checked the contents of this game as we were busy developing "chezpuf man adventres 2" to keep up, The soundtracks are named after the levels. We will check the contents soon though.
IMPORTANT: This was made using Griffpatch's "Geometry Dash v1.5"