The Nintendo Direct on September 5th taught us about Pokémon Camp, a heavenly place where you can take care of your Pokémon and play with them. It is at this point in the trailer that we see a green Alcreamie. On the official Pokémon Sword and Shield website, we learn that this Pokémon has several shapes and colors.
Here is the list of variations of Alcreamie that we currently know:
As a reminder, Alcreamie is famous for its whipped cream. Depending on its colour, its taste will therefore be different.
