I really liked the sarcastic tone that the game has going for it, as well as forcing the player to play with the controls backwards. I also enjoy the grey-ish palette along with the static effect that's occurring on screen; those two aesthetics seem to fit really well together. The one thing I feel should be fixed is that the jump feels kind of floaty, which made it way too difficult to complete the missile section since my character was falling down too slowly.
I would suggest looking at the video, Better Jumping in Unity With Four Lines of Code, it really helped me grasp the concept on how to make your character jumping feel more responsive and satisfying.