local function highlightNPCs()
    for _, npc in pairs(workspace:GetChildren()) do
        if npc:IsA("Model") and npc:FindFirstChild("Humanoid") and not game.Players:GetPlayerFromCharacter(npc) then
            if not npc:FindFirstChild("Highlight") then
                local highlight = Instance.new("Highlight")
                highlight.Parent = npc
                highlight.FillColor = Color3.fromRGB(255, 0, 0) -- Rojo
                highlight.OutlineColor = Color3.fromRGB(255, 255, 255) -- Blanco
                highlight.DepthMode = Enum.HighlightDepthMode.AlwaysOnTop
            end
        end
    end
end

highlightNPCs()
workspace.ChildAdded:Connect(function(child)
    task.wait(0.5)
    highlightNPCs()
end)