toggleable kill all

local Toggle = false
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")


UserInputService.InputBegan:Connect(function(input, gameProcessed)
    if gameProcessed then return end
    if input.KeyCode == Enum.KeyCode.Z then
        Toggle = not Toggle
    end
end)

RunService.RenderStepped:Connect(function()
    if Toggle then
        for _,v in workspace.Zombies:GetChildren() do
            if v:FindFirstChild("Humanoid") and v.Humanoid.Health > 0 then
                game:GetService("Lighting").ETC:FireServer({v.Humanoid,math.huge,"Damage\240\159\144\153",false,false,false,[8] = vector.create(0,0,0),[9] = {HitS = 1,ConfirmedHit = 1}})
            end
        end
    end
end)