Here is a little game I made with Unity for Halloween. It was actually something I did most of the work on last year when I first tried Unity out but didn’t get it finished so I decided to pick it up again and get it done for this year’s pumpkin day.
I recommend a Wii FPS-style control scheme instead of what you have, however. As in, move close to any screen edge to turn the camera, not just a tiny splinter of those edges (the arrow).