The games will include a story called the Delta Episode. The Delta Episode reveals the history of the Hoenn region, up to 3,000 years in the past, and explain the mystery of Mega Evolution. Zinnia plays a significant role in this story. During the episode, the Mossdeep Space Center discovers that a giant asteroid is hurtling toward the planet. Depending on the game played, either Team Magma or Team Aqua try to steal Trainer's Key Stones. Trainers must stop Team Magma and Team Aqua from attacking the facility. Meanwhile, Rayquaza is fighting against Deoxys in space. Wallace, Steven and Mr. Stone all appear in this story.
In order to catch Regice, Regirock and Registeel, the player must decipher messages scattered throughout the Hoenn region. After catching Regice, Regirock and Registeel and meeting other special conditions, the player will be able to encounter Regigigas.
Poké Miles and Medals earned in Pokémon X and Y as well as Pokémon Omega Ruby and Alpha Sapphire will allow players to play the new Pokémon Global Link attraction, Mine Cart Adventure. It will be available starting Nov. 21, the launch date of Pokémon Omega Ruby and Alpha Sapphire in most regions. In this attraction, the player must navigate carts on winding tracks to collect Berries and win a variety of Poké Balls.