Cool game. I like the design of the world. It's good at leading you in the right direction and is laid out so you end up where you need to be without too much backtracking. The amount of different abilities is great and I like being able to find secrets like the health boosts (and a second dash ability for some reason?)
As others have mentioned the controls feel stiff. I think this come down to two main issues:
1. Most moves have a (relatively) long windup. This isn't too bad with attacks, but it's very frustrating for jumping which is typically instant.
2. The need to hold down the button for the duration of an attack feels awkward. Normally you would expect a full attack animation to play out just by tapping the button.
Other than that, the presentation is pretty good. The sprites are well drawn and the music is nice.