Very nice entry! I really like graphics and idea behind the story (although the dialogue felt sometimes weird, at least for me). I also liked the symbolism behind demons.
Now what could be improved. I had no idea how my superpower are getting recharged, so some information about that would be appreciated (if I just missed it, then maybe make it more visible). The horizontal laser deamon would look better, if either player had to click on both to make them both dissapear or if the laser was extended after one of them was destroyed.
All in all this is a good entry, thanks for creating it.