Wow, this is a really great puzzle game!
I think having to pull off precice-ish throws kind of interferes with the thinking element of the game a bit. It's not so bad but I think it'd be nice to extend the indicator of where the soul is going to go. I guess that could be something to think about.
Also nice art style, it's very clean and cute. Also the particles on the lasers look really good. A simple background would be nice.