I enjoyed the top down shooter aspect and the items being mimics was a neat touch. I definitely got a little paranoid walking around, which was a neat feeling.
I would have liked my character (and the camera) to always be facing in the direction of my mouse cursor instead of in the direction of my movement. There were times where I would be backing up away from an enemy and it would scroll him off the screen so I couldn't shoot him. A quick and easy thing you could do is to reposition the camera half way between the cursor and the character in world space. It leads to a nice feeling, I think.