Reminder: Download the Pokémon Sun and Moon demo via Nintendo 3DS eShop to get Battle Bond Greninja / Ash-Greninja before March 27, this is currently the only way to get this special Pokémon

The special demo version of Pokemon Sun and Moon allows you to partner up with Ash-Greninja and form a Battle Bond with it. Check out the video below for gameplay footage from the demo, which is now available in the Nintendo eShop on Nintendo 3DS. The demo will no longer be available to download as of March 27, 2023, so be sure to do so while you still can!

Source: Pokemon