How to reach the head of a large Pokémon in Pokémon Refresh?

Take your stylus and place it on the top of your bottom screen. Then just hold the stylus there for a second or two. The screen will automatically scroll up and place the top of the Pokémon on the bottom screen. If you want to go back to the bottom part, you can do the same thing by placing your stylus on the bottom part of the bottom screen and holding it there.