It would be good to have unconscious state as in ACE2. -> http://www.youtube.com/watch?v=qsf3eoBl1Eo
So when you are down, you sometimes open up eyes to see whats going on.
Also it would be good to have some type of lifetime countdown. So for example you know that you will be up in xx minutes or you will be dead in xx minutes, it is better then useless waiting for nothing.