Sound effects were great! Gun play felt satisfying, I liked the detail to the weapon sway as you strafed. There were times where I felt like I was walking very slowly for a long time with nothing to shoot at, so it would have been nice to have a section where you're getting swarmed or after the ducks are introduced, they are constantly a threat with more spaced out wolf spawns.
I got significant lag when new events happened for the first time while playing in browser (first time shooting pistol, ducks spawn in, etc), but that could just be a browser problem.
Other than that, it's a solid game with no glaring issues. Definitely so bad it's good!