Fires a somewhat large bullet that when landing, flattens the terrain in the same radius as Sinkhole and a depth of around one digger deep. If shot into a hole it will flatten all terrain in its area of effect, no matter what height. If shot from the bottom of a cliff to the top, it will raise terrain equal to the landing spot to "flatten" the terrain around it. This is a useful tactic of raising oneself when stuck in a hole. Unlike other weapons, its damage is calculated after moving terrain.