Using a with a Sky3DS flashcart or through 3DS modding allows players to run the game on original hardware.

: Players can travel through Ultra Wormholes to visit other worlds, battle various Ultra Beasts , and eventually confront Necrozma in its ultimate "Ultra" form to restore light to the multiverse.

: After the main story, the game features a massive post-game arc where Giovanni returns, leading a syndicate of previous series antagonists (like Maxie, Archie, and Cyrus) who have been pulled from alternate timelines where they succeeded in their plans. Technical Context (ROM/Sky3DS)

: This mysterious group from another dimension, known as Ultra Megalopolis , plays a central role. They appear throughout the story to investigate the legendary Pokémon Necrozma and the nature of Ultra Wormholes .