task.spawn(function()
  while true do
    task.wait(1)
    local entities = workspace.Entities:GetChildren()
    for i,v in pairs(entities)do
      if v:GetAttribute("NPC") and not v:GetAttribute("Dummy") then
        local npchumanoid = v:FindFirstChild("Humanoid")
        npchumanoid.Health = 0
      end
    end
  end
end)