This is definitely the hardest level so far. My method was to use ranged for the first two rooms then in the third room use ranged up to the point when the fat zombies run at you, best tip here is to let them run into the wall and then use the chicken drum stick on them. From this room on I just used ranged and hammer charged attack. Remeber to stock up on ammo in the 4th room I think it is(the circular room with the lunatics), using the gargoyle shop in one of the cells. This method should get you through with loads of health to spare.
Indeed, I also used these methods to cross this level, especially in the third room with the headless zombies, and I actually used fried chicken to defeat them, but the bats drained my energy a little and of course these maniacs from the lunatic. Lol 😵😭
I think the best option at this level is the charged broodsword, I used it and only lost 2 bottles, in the lava part I used the Axe to defeat the further enemies, though...
