About This File
In Generation IV of the core series games, a ???-type Arceus was programmed into the game, the same typing as the move Curse.
However, it goes unused, as there is no legitimate way to convert Arceus's type into ???-type.
While it is possible to change the Arceus's forme via hacking,
as it is not holding the correct plate (which doesn't exist), it will revert back to normal-type when it enters battle.
Generation V and onwards, the move Curse has been changed to ghost-type,
and this forme of Arceus has been removed.
The details below refer specifically to the file uploaded.
Format Ver.1.0.6-1, Post Updated Date:20180224_0726
[The 3D animated sprite above is a custom-made sprite. This form only existed in Gen 4.]