To evolve Inkay into Malamar in Pokémon Go, you must first collect 50 Inkay Candy. Then, you need to physically hold your phone upside down and press the "Evolve" button. This unique evolution method mimics the mechanic from the mainline Pokémon games and requires your phone's orientation sensor to be active. Only when the phone is upside down will the evolve button activate, allowing Inkay to evolve into Malamar. This method works for both regular and shiny Inkay.
