I like this game, a simple and effective platformer. I don't know if it's me who didn't find a way but I didn't like having the controls on screen the whole time.
I think the interesting part was the level design, I can see a lot of the first obstacles are meant to teach you about the mechanics and I prefer it that way. At first I liked that the level had a semi-open design with some areas being accessible from different paths, I regret that it only led to soft locking and not to different ways of getting the stars.