Fun puzzle + good looking with all its blood! But R for Restart doesn't work for me somehow :( Also Backspace key - is very far from other keys on the keyboard. At first didn't realize that you can infest people so stuck for some time. Also holding and pressing keys is not very convenient for me here, I would change it to something "Press 'E' to infest person in front of you".
My favorite minimal style! Nice simple game but lacking of polished feeling. Need some particles on enemies' death, bigger projectiles, a little screen shake on shoot. Coins magnet would also nice addition!
