I think something went terribly wrong with the physics of your game: bugs everywhere! when jump, when touches a wall; I died just for touch a wall in some areas...
The jump itself is odd: I cant pass the first hole without using the coyote jump and the player falls very fast (are you not using delta time?? Maybe this did the game run different for me once it reach only 60 fps instead of 130 that I see on your screenshots). The dash suffers from the same problem. It feels too strong.
About the graphics: nice work! I loved that you put a blur into the background. The parallax works very well, too.
I see that you did the code, art AND the music and I really appreciate the result! Good Job! Being myself a solo dev, I know the immense amount of dedication/effort this requires.
Overall a good game.