Well, that was an experience. The zombies were just flying all over the place, some were the size of the Statue of Liberty, and the foliage was so dense I had to spam jump just to navigate anywhere. Could have done with the zombies' power of flight, only way I could possibly survive for more than thirty seconds.
thanks for the feedback.
1. Did you play on web? Because performance is way better on PC.
2. gigantic zombies: There is a 5% chance for a zombie to get gigantic. there are also 3 bosses. When did the zombies start flying? Try the pc version, i am sure you can manage to survive 200+ seconds. :)
3. too dense foliage: there is a road on the ground. Just follow that, you will soon be in an area with much lower tree density :)