SOS Encounter: Thrifty Megamart
Walk: Thrifty Megamart (5%)
Gift: Heahea Beach (Only in Ultra Sun & Ultra Moon)
Its base catch rate is 45 out of 255 (higher is easier); the catch rate calculator works out your odds with each ball. For the look, the best colour match is Ultra Ball or Love Ball.
Mimikyu in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)