What role-playing games featuring Yungoos and Gumshoos were released a year prior to "Pokemon Ultra Sun"?
Yungoos and Gumshoos: Yungoos ( ), known in Japan as Youngoose (ヤングース , Yangūsu ) , and Gumshoos ( ), known in Japan as Dekagoose (デカグース , Dekagūsu ) , are two Pokémon species in Nintendo and Game Freak's "Pokémon" franchise, debuting in the 2016 Nintendo 3DS games "Pokémon Sun" and "Moon". Pokémon Sun and Moon:  First announced in February 2016 through a special Nintendo Direct, both "Sun" and "Moon" were released worldwide in November 2016, commemorating the franchise's 20th anniversary. Pokémon Sun and Moon:  Two follow-up games, "Pokémon Ultra Sun" and "Pokémon Ultra Moon", will be released for the 3DS in November 2017.
"Pokémon Sun" and "Moon"