I liked the art style, but the platforming not that much, it felt to generic.
Also what is wrong with Unity and moving platforms? I have encountered many games that the moving platform does not move the character horizontaly. Anyway this did not affected my rating.
On the other hand the theme interpretation affected negatively my rating cause even thought the smaller you get the faster you get, there was not a single moment in the game that this was needed.
So I considered as an excuse.