I can infinitely jump! That's no good for a challenge.
Camera feels way too close to the player during the sections you are running perpendicular to the camera view, It would be better if the camera systems rotation was dynamic to the player or allowed to be controlled with the mouse. I couldn't see what was coming in front of me! There is also some clipping issues with platforms and walls - I can either walk completely through them or my model fights with them.
Sometimes when running up the ramp my player would just fall over leaving me stuck and unable to restart from the checkpoint and having to start over completely.
When still on an edge the character would start to fall over. Ramps seem to cause this too
Also when reaching the final purple structure, I can walk through into it and pushes me under the level getting me stuck! (I thought there would be a win condition here but there was not) I again tried the level over again to jump onto the purple structure but the entire thing has a collider box preventing me from going near it.