Nice little puzzle game art was pleasant and the colour pallet works pretty good.
Seems to be a issue with the movement and colliders when you are near walls or block some times you have to keep pressing the button to move in the direction you want to go even if there is nothing blocking it. This happened in level 2 
and I had to restart since I was stuck
Level three I tried to go for the point but pushed the top block down into the lower one and got stuck and was unable to move me or the blocks
I am not sure how you are doing the checks to see if the player can move so not sure what the core issues is.