Thank you for the kind words! There were a lot of concepts we had in mind but didn't have time to implement, so maybe in the future we'll add those in.
Thank you so much for the feedback, we're glad you liked the mechanics! We had some internal team issues and unfortunately didn't have time to add background music or a lot of other features we were hoping to have.
Thanks for the comment! You actually can kill the zombies after 4 hits (including if they walk over paint on the floor), unfortunately we didn't have time to add enemy healthbar UI.