The puzzles are very nice, simple but very satisfaying, even if the last one is difficult and not so obvious. I like the color palette, overall great game!
The controls are a bit difficult to handle and I personally don't like that much, even if I think it was done by design. Instead I really liked the effect of the background when the player accelerates and also the hidden parts of the level that appear grayed on the background. Very nice done!
The story is good and the game is clear enough on the path to follow, without being too simplistic or linear. I kept being scared since I was concentrated on the jumps, good job!