As soon as I read how the game would operate, I wanted to play it. WASD + mouse is my favorite way of operating a game like this, (Some designers muck it up with too many keys and no mouse manipulation.)
It took some getting used to until I realized I didn't have to move my copter all the time--at least in the early going. Good job with the sound track, too. There was one segment that sounded like Ken Andrews (Failure, ON) and another like Nine Inch Nails. The intro music sounds like a mixture of Vangelis and Failure. Good job!