The Washroom is a location in Luigi's Mansion and its Nintendo 3DS version.
Description[]
The Washroom resembles the one on the first floor, except a Toad does not appear in it, and there is a "Monsters" poster instead of a medicine cabinet. In the Nintendo 3DS version, the poster instead depicts a field.
In Luigi's Mansion[]
The Washroom is a room part of Area Three. Whenever Luigi approaches the toilet tank, in it, a Water Elemental Ghost emerges from it. A Heart also usually appears from the sink upon examining it. The Water Elemental Ghost is necessary for Luigi to release water onto the Temper Terror to douse the fire protecting its heart and therefore defeat it. When Luigi defeats the Temper Terror, the lights turn on, and a treasure chest containing some money appears.
During the blackout, if Luigi visits the Washroom, he can encounter two Temper Terrors.