From Bulbanews, your community Pokémon newspaper.
Includes two codes for 100 Poké Balls
Pokémon Sun and Moon Double Pack box art
A Pokémon Sun and Moon Double Pack will be available in Japan. It will be available on the same day Pokémon Sun and Moon are released in Japan, November 18, 2016.
The Double Pack includes both Pokémon Sun and Pokémon Moon. While not explicitly stated, these appear to be physical copies of the games. The bundle also includes two serial codes, each of which can be redeemed in Pokémon Sun or Moon to obtain 100 Poké Balls.
It will be available for pre-order from national video game retailers in Japan starting July 16, 2016. It has a recommended retail price of ¥9,960 (excluding tax).