You're right, your game deserve a more precise feedback.
The main character isn't easy to control, there is no invincibility frames when you get hit ( and you can lose all your life in 5 seconds ), the level design could be improved, I don't understand why I must press Shift THEN the direction to dash (and not the opposite ), the wall jump say that I must listen to the saxo and there is no saxo and finally, I find the revive system suite weird : I understood that I was gaining life when I was pressing the key in rythm, but I just ended up pressing all the keys on my keyboard like a moron each time I died.
And I'm really sorry to tell you all that, because I really like this concept, and I would love to see it in a finished game.
Good job anyway !