There are seven exclusive Pokemon in Pokemon Sun.
Lycanroc (Midday Form; Rock type): The second form and first evolution of Rockruff is a wolf-like Pokemon that lives alone. While still threatening, the Midday Form of Lycanroc isn’t nearly as menacing as the werewolf-like menace exuding from her brother, the Lycanroc Midnight Form. In its midday form, it retains the light-brown colors and looks much more like a wolf, ready to pounce on prey.
Ninetails (Alolan Form; Ice/Fairy type): The Alolan evolution for Vulpix, Alolan Ninetails becomes a dual-type with the addition of Fairy. This chilly Ninetails features a billowing tail, making it resemble a freezing winter fog. It has adapted to live on high peaks and traverse freezing conditions on mountains.
Passimian (Fighting type): A Pokemon that’s all about teamwork, Passimian works together with a pack, passing hard-shelled berries to help friends or hurt enemies. Seen taking a Quarterback-like stance, Passimian even wears a green helmet fashioned from hard Alolan berries.
Solgaleo (Psychic/Steel type): The sol-based Legendary found only in Pokemon Sun comes in two phases — normal, and Radiant Sun. When transformed, Solgaleo can expend the vast amounts of solar energy from its body, and glows brightly. This Pokemon can’t be captured by normal means. Only the strongest trainers will be able to calm it’s burning personality.
Turtonator (Fire/Dragon type): This explosive turtle Pokemon features elements of a common tortoise mixed with a landmine. That makes a tough combination, and the fire type / dragon type combo only makes sense for a fire-breather. The heavy shell it uses to protect itself makes this tank-like Pokemon ideal for the lava-filled volcano environments found in Alola.
UB-02 Absorption: This Ultra Beast only appears in Pokemon Sun, and resembles a massive, muscular lobster. This massive creature is all about physical attacks and high defense, and can bring the pain with its over-sized fists, raining punches on unsuspecting Pokemon and their trainers if they’re not ready for a tough fight.
Vulpix (Alolan Form; Ice type): Vulpix and Ninetails return in Pokemon Sun with their all-new Alolan forms. Switched from their traditional fire type, both are now ice type due to their living conditions on a cold Alolan island. Although it doesn’t visit warm climates often, Alolan Vulpix can lower the temperature of an area on command.