Frantic action!
Took me a while to realise that sttanding on the red sectors hurts my health.
I liked that the pace in this, always something to focus my attention on and consstant threat. Also enjoyed that the environment around me was changing and that game me reason to think about changing my position (otherwise I felt like being static and aiming was my best strat).
I found myself wishing that there was even more reason to move around while shooting. Maybe if the level was changing more frequently or if there was some point / objective I had to reach.. that would keep me on my feet.