I can't stress how this specific download will not be the actual game. There's no storyline at all!
You get to shoot stuff and see how things work though!
Complain, complain, complain! Tell us every single bad thing about it (I probably repeated this message in the demo multiple times, and you'd be sick of it by then), but seriously, if there's anything that annoys you even by a little tiny tiny bit, tell us and we'll consider a solution. We want this to be an awesome game so we need your opinion for that!