Interesting in the least!
Well I don't really know what to say. This game is a VERY interesting piece of work. I'm not really sure what to criticize though, or how because of it's uniqueness - but I felt I had to write SOMETHING mostly just to encourage you to improve or make more games. I did find the game quite hard as enemies spawned pretty fast. I agree with Gaiacarra on mots points but especially regarding the hit detection. Perhaps try and make a snap-to-enemy kind of system for the cursor so one would be sure he's actually hitting something and not just magicking the air. Making things perhaps stick out a little more from the background (as in point and click games and searching games) mind help as well. I mostly wasn't sure as to exactly what point on the man's head kept his sanity... I also wasn't sure what the cursor was supposed to be, and angel, fairy? Or perhaps this is intentional... Many points for originality and mood, though the graphics and menus could be improved, their good for a start.
Hope to see more from you soon!