The Japanese Nintendo eShop has added two new Pikachu 3DS themes titled Pokémon: Pikachu Dance and Pokémon: Voice With! Pikachu. As you scroll from left to right, the top screen for the dance theme will show other dancing Pokémon while the bottom screen displays five Pikachu (also makes noises when you scroll).
The second theme will also have noises when you scroll and the bottom screen will show an animation of Pikachu speaking. Each cost 250 yen individually, but if you get the bundle it’s 350 yen.