Crazy stuff. Unfortunately I got motion sick within about 3 min and still feel it's effect. I think it was a long fall I had + darkness and not really understanding my orientation.
I feel like this could be a game entirely based on exploration, but maybe give the player better options to move around. Jetpack? Or just let them fly like a plane.
It could also be a simple "reach the goal" where you have to traverse the crazy terrain, focusing on fastest traversal with global high scores.