5/5 potential - but 2/5 right now. The field of vision is nonsense. Every character should have a small circle around them for shooting. The levels are long and tedious. A restart wave feature would be great. And like everyone else, day 3 kills the game for me.
5/5 for the concept - 1/5 for the execution. Laggy controls make for unnecessary deaths. Blind jumps in dark rooms = poor level design. Blocks you can push but not pull means you're stuck - restart level.
I don't think I've ever seen a game so buggy get badges before. Crabs magically appear and disappear. I get attack by phantom crabs - and I just got the king crab badge for....killing a zombie crab. I also haven't seen any point yet to the multi-player aspect. Can you even share loot if two people kill something?