The presentation is pretty nice, with the kill cam and the intro and such. However the kill cam got old pretty quick with it happening to every enemy. The sprites changing on the kill cam was a nice touch though.
I think that the central mechanic of spinning orbs could've had another purpose added to it to make it more interesting, now you can only attack enemies and nothing else, maybe a way to solve puzzles with them or traverse would've been an interesting addition. Maybe that's something to expand on if you ever revisit the idea.