Just a minor thing, but when I die, the red low health indicator around the edges of the screen remain for the next life and does't go away. If I could fix this in some way, could you tell me. It's just kinda annoying.
Also, I'm not entirely sure if it's a thing because I don't remember from playing, but I think the health thing that comes on when being healed should also come up when picking up health packs, eating or picking up any of Heavy's edibles, and getting healed from the Mad milk.
Other than that this is amazing. Nice work.