When players travel through an Ultra Wormhole in Pokémon Ultra Sun and Pokémon Ultra Moon, they will encounter not only Ultra Beasts but Legendary Pokémon as well, like Mewtwo, Ho-Oh and Lugia! Some of these Legendary Pokémon will differ between Pokémon Ultra Sun and Pokémon Ultra Moon. If players explore both games or trade with other players, they can obtain all of the Legendary Pokémon that have appeared in previous Pokémon series games!
Legendaries in Pokémon Ultra Sun: Dialga, Ho-Oh, Raikou, Groudon, Latios, Heatran, Reshiram, Tornadus and Xerneas
Legendaries in Pokémon Ultra Moon: Palkia, Lugia, Entei, Kyogre, Latias, Regigigas, Zekrom, Thundurus and Yveltal