This is Geometry-dash. To play you have to pick a level, there are 3 levels. Stereo Madness Back on Track, and Polar-Geist Click your mouse cursor, or press space to help your character jump.
I tried to make my own Geometry Dash, but for some reason, the player always went to the bottom of the screen, so, I looked at griffpatch's project for some info, when I still failed and failed, I gave up and remixed this project. But please note that most of the work was mine, I need to remix his project because there was a bug in my server. Thank you Griffpatch, for making such amazing projects, look at @griffpatch for more