"Under a full moon, this Pokémon likes to mimic the shadows of people and laugh at their fright."
Just had to make my favourite Pokémon at some point. Loved this cheeky ghost since it's debut in the very first anime.
To give Gengar a tongue you don't have to prompt 'open mouth', just tongue out will do.
With closed eyes you have to be a bit experimental with it. Gengar canonically closes it's eyes in two different ways and AI is too stupid to differentiate.