The Waterwraith is a boss from Pikmin 2 that lacks a physical form in the Pikmin dimension. It is found on all sublevels of the Submerged Castle, which only Blue Pikmin can be brought into, although it is possible to find Bulbmin on levels two-four and White Pikmin on level three. It rolls around using two massive stone rollers and tracks down Olimar/Louie/the President and their Pikmin to crush them. It's only weakness is the strength of the Purple Pikmin, which can anchor it into Olimar's dimension.