Nihilego(JP) is is a species of Pokémon in the series of the same name. It is a Rock / Poison Pokémon introduced in the seventh generation in Pokémon Sun and Moon. It is an Ultra Beast with the code name as UB-01 Symbiont.
Physiology and Behavior
Main Pokémon games
Nihilego is the first Ultra Beast encountered in Sun and Moon. It appears as a boss in the Aether Foundation Conservatory. Later, Lusamine summons one before going in to its dimension.
In the post-game Ultra Beast quest, Nihilego is the first Ultra Beast that has to be hunted down. It's on Akala Island.
Other Pokémon games
In the anime
|Pokémon Sun||One of several mysterious Ultra Beasts. People on the street report observing those infested by it suddenly becoming violent.|
|Pokémon Moon||One of the Ultra Beasts. It’s unclear whether or not this Pokémon is sentient, but sometimes it can be observed behaving like a young girl.|
|Seventh Pokémon generation|
|Pokémon Moon|| |