So I played Hide-and-Seek with the male Frillish in the Cove Area. You know how when playing Hide-and-Seek, the Pokémon hiding makes a little cry to kind of give away where they're hiding? The male Frillish made the cry of the female Frillish. Is this a glitch?
This is not a glitch. This happened because Frillish doesn't change its cry between its male and female forms.