First of all, I really want to commend the polish on this entry. Everything has a sound and you can even interact with some of the environment (the lights and foliage). The menu and UI is also very clean ! Fantastic job on that front !
I must admit it took me an embarrassing amount of time to figure out what the gimmick of the game was. I uncovered the entire map and ran around for a while before I found my first ability. Then, I was confused once I lost my ability to get a new one. Eventually I figured it out and I gathered most collectibles, but I did not finish. Very unique and unexpected mechanic ! I enjoyed it. Though, I think it would have benefitted from a bit more guidance to point the player in its direction.
Regarding level design, I think it is a bit on the difficult side and I found myself dying quite a bit. It could be a skill issue though.
Finally, I would like to commend the 2d character controller. It controls perfectly ! Great job !
Really neat and unique little entry imo !