I love you.
The only thing I can say is that you need to darken hitcircleoverlay.png and spinner-approachcircle.png, because it's hard to read elements when their borders are gray (maybe it's just me, but sometimes I can't react fast enough and see where the next hitcircle exactly is).
Nobody really knows when the body dies. After brain death, and then organ failure, and all the electricity's gone, a rotting corpse still feeds the world, mother's diesel for the biological engine of life. Who knows where the internet will go, or for how long, or in what strange aeons it will return? Who can say if ours was even the first?