We recently learned that mysterious and deadly creatures called "Ultra Beasts" will appear in Pokémon Sun and Moon, and this morning we got a handful of new details about them via an update from The Pokémon Company in Japan. As a follow-up, a brand new trailer has just been released and the official Pokémon Sun and Moon website has been updated with even more information, including the fact that UB-02's two forms are each exclusive to one version of the game. You can check out the new trailer starring the Ultra Beasts above, and you can check out more details on them below.
During your adventure in Pokémon Sun and Pokémon Moon, the Ultra Beasts appear—and attack the Alola region! UB-01 was recently revealed, and now there are two more: UB-02 Absorption and UB-02 Beauty. Their numbers and purposes are not known, but it does look like there may be additional Ultra Beasts beyond UB-01 and UB-02.
The Ultra Beast known as UB-02 Absorption appears in Pokémon Sun, and the extent of its strength is unknown. Its entire body is covered with bulging, powerful muscles. The full force of a punch powered by these muscles would be off the charts! Its distinctively long mouth is said to be harder than diamonds. Could the Ultra Beast also use it to attack?
The Ultra Beast with the codename UB-02 Beauty appears in Pokémon Moon. What kind of power does it possess? Its narrow, graceful legs allow it to accelerate with such explosive speed that people claim it can dodge lightning! It is said that any Pokémon that sees UB-02 Beauty, regardless of its own gender, will become infatuated with it and lose the will to battle. The exact reason for this reaction—whether it's an unidentified pheromone exuded by UB-02 Beauty or a hypnotic effect induced by its appearance—has not been determined.
Source: The Pokémon Company