Pokemon X/Y: Pokemon-Amie: Head It [Hard] (Nintendo 3DS)

As I have said on another Comment of yours, You can check by the Stars.
Here the Stars are Pink, so it is played on the Hard Difficulty. The Words Above the Stars and the Types of Muffins are also different for each difficulty, but People who do not know the game should only worry about the Star Colors because it is the easiest way to tell which difficulty it is played on.