Great game. Enjoyed playing it. Got to a high score of 241. And btw, the intro was hilarious :D
Loved the change in tune, and the message displayed after you walk through that exit door. Deep and touching.
One thing that can be improved upon is probably the game music. I felt, it was a bit too peaceful for a zombie theme. But wasn't out of sync with the overall theme, considering the intro and the ending. Other than that, a really good game. 🙌