Zombie Uprising instant kill

1. local UserInputService = game:GetService("UserInputService")
2. local mouse = game:GetService("Players").LocalPlayer:GetMouse()
3.  
4. local function began(i, is)
5. if i.UserInputType == Enum.UserInputType.MouseButton1 then
6. if mouse.Target and mouse.Target.Parent.Name ~= "Boss" then
7.     local w = mouse.Target.Parent:FindFirstChild("Humanoid")
8.     if w then
9.         repeat
10.             wait()
11.         until w.Health ~= w.MaxHealth
12.         w.Health = 0
13.     end
14. end
15. end
16. end
17.  
18. UserInputService.InputBegan:Connect(began)