Great idea for a puzzle game. It may be helpful to include a built-in tutorial to explain the controls and some kind of audio/visual feedback for when an object is "possessed" or a change in pitch for when a laser is in contact with a mirror. Also, zooming out would make things more manageable for the player.
I liked the start menu and the level select screen. Need to include those for my games. I also noticed in the bottom left corner that it said "Lasers, Lasers, Lasers" which made it seem like you were excited about lasers which in turn got me excited about lasers.