Neat little game.
Took me a little to get used to the different heights of platforms. maybe the shadow could change in size somewhat to indicate height, but honestly it just takes a little getting used to is all. Maybe the floors you are currently above could have a slight hue shift to them, to indicate you can land on them if you dash to them. Potentially when you are below them they could be slightly darker and when you are high enough they are more vibrant.
I love the movement, Maybe when you hold down right click it could show you how much life the dash the dash is going to spend, like maybe a part of the bar goes slightly grey as a piece of quality.
Overall I think its pretty solid