Monkey Sense is the second upgrade of Path 2 for the Monkey Apprentice in Bloons Tower Defense 5. It lets the apprentice attack camo bloons but will not grant detection to other towers. The upgrade picture is of a wizard's hat. Monkey Sense increases the hat size of the apprentice's hat. The eyes are no longer visible. The tower icon becomes rather like the monkey is tensing its hands and mouth, looking like as if it were emphasizing its physical strength. This upgrade is like the Crystal Ball premium, but it does not increase the Wizard's range.