I love the ideas of just being able to stay in the shadows, and having to dash between them, also getting different abilities to dash to ones that were inaccesible before.
I think it still lacks some work to make it really work though, shadows would work half of the time (I think I ended up being stack because the character wouldn't climb one of the shadows), the dash would also work sometimes, the attack felt really bad to use too.
Presentation was okay, but I don't know if it was just in my computer, but I found the sound when you are out of the shadows to be really grating, to the point I had to turn off sound.
The idea and mechanics have a lot of potential for a metroidvania, and I think that by polishing it more it could be a really good game! For now, it's still a very interesting entry, so good job!