This is a really great mechanic. Idk if you came up with it but I haven’t seen it before and had a lot of fun with it. I also liked the hotter/colder design of leading the player to the helicopter, that works really well. I think the map is procedurally generated? It seemed like the end was in a different spot last time which is a nice touch.
I do feel like it was a little easy. I didn’t even take damage my first time playing, and the zombies died so far away that I actually thought they were spiders. When I got to the lit up helicopter I was like “whoa there’s zombies in this game too.” That’s easily balanced though, I just think having them take a few more hits before dying would be good.
All in all really great game that fits the theme well. Thanks for sharing. My game is linked below if you want to check it out.