The Changing Machine is a 'harvestable' that was introduced during the Ratboy's Nightmare Update. It is one of the many collectibles that are needed by the players in order to complete the entries of the Itempedia of the Nightmare.
The Changing Machine may be encountered as a 'reward' collectible at the very end of the obstacle room in Meeting Place, inside the red room. Other than that, it is possible to encounter it as a rare sighting in the Fish Hall, The Mansion, Inside, and The Grand Hall.
In appearance, the Changing Machine is comprised of two effigies made out of metal and plastic. It appears to be wielding a small mace, as well as a collective group of floating blocks beside and behind the figures.
The Changing Machine does not have any usages in-game that will benefit the players, other than to be sold to a selling vendor at a selling price of 55,000 gold.
- A room is dedicated to the Changing Machine, as seen in the Meeting Place.