This was a lot of fun! Nice and simple, but very effective and well implemented. The art and music also fit the vibe very well :)
One small point of feedback is that is was not entirely clear to me when I should press space to land because it was unclear where the ground started. Maybe just a fully 2D ground with a clear line for where the ground starts would have been better? But that is a very small point :)
Thanks a lot for making this!