The graphics are amazing. Lovely atmosphere and everything. Gameplay is great! Mechanics are pretty responsive and makes for some intense jumps. I'd love some more audio feedback, especially when you get the blue gems so you know when u can dash again but overall it's an awesome game!
Other things that can be improved: I got lost sometimes, different types of terrain would help, so you know where you have been already, or a small clue towards where you need to go.