Yeah, that's exactly what I expected, it just feels like it takes away from the enjoyment of the game when you have to constantly hold the mouse down for extended lengths of time while doing precision dodging, if you had a cursor sort of "clip on" when you clicked the window it would simulate dragging the window visually, and the shots would make the hand drop it, but as it is it's just (to me) not enjoyable to play for very long at a time.
Other than that thought I love the game, love the concept, love the humor, good job.