The idea is great! At first I was a bit confused to have the cleaver on the left while having to right click to use it, same for the gun, but that wore off after a few minutes of gameplay. The art style really fits and I got spooked a few times while turning around. The font usage is a small but noticeable touch. There were a few times were I took damages without really knowing where or who it came from despite looking around me (took damage in the kitchen too). My biggest gripe is the gun doesn't feel really good to use, a better animation can go a long way in making it fun to use. Some quick quality of life stuff like a pause menu with escape would also be very welcome. The flamethrower idea sounds really exciting too.
So overall a fun game with a great concept and very fitting artwork, with some additional polish you can make a killer game out of it :)