The Christmas Pets were released during the Christmas Event (2019) Update, which lasted from December 14, 2019, to January 11, 2020.
Christmas Egg Pets
The Robin was one of the pets included in the update. It is classified as Common. It has a dark orange underbelly and face, a brown outer body, light orange legs, black beady eyes, a black beak, and three tail feathers.
The Wolf was also another Christmas Pet released in the update. It is classified as Uncommon. It has a light gray underbelly, feet, and inside of its ears. However its outer body is dark gray and it has black eyes.
The Swan is a Christmas Pet in the update. It is classified as Rare. It has a white body, yellow beak, black eyes and feet.
The Polar Bear is a Christmas Pet in the update. It is classified as Rare. It used the same model as the Brown Bear. The Polar Bear has a white torso, arms, and feet, the Polar Bear also has black eyes and a black nose, and it has grey ears
The Arctic Fox is a Christmas Pet in the update. It is classified as Ultra-Rare. It is the second fox to be released after the Fennec Fox. The Arctic Fox has white fur and paws, black eyes, and a black nose.
The Arctic Reindeer is a Christmas Pet in the update. It is classified as Legendary. It uses the same model as the Reindeer, except it is white. Its Neon appearance makes its antlers, feet, tail, and nose glow a bright white.
These pets could be obtained by purchasing their respective Gamepass or through trading.
The Frost Dragon is a Gamepass Pet that costs 1000 and is the 4th dragon in the dragon family after the Dragon, Shadow Dragon, and the Bat Dragon. It is classified as Legendary. It has the same tricks as the Shadow Dragon, except its last trick is Frost Breath, while the Shadow Dragon's trick is Shadow Breath.
Santa Dog (Dalmatian)
The Santa Dog (now known as Dalmatian) is a Gamepass Pet that costed 250 while it was available in the shop. It is classified as Ultra-Rare. After the Dress Your Pets Update, the Santa Dog was renamed to Dalmatian (a version without the hat) which players received a Santa Hat from every Dalmatian they had.
Elf Shrew (Shrew)
The Elf Shrew (now known as Shrew) is a pet that costed 23,000. It is classified as Rare. After the Dress Your Pets Update, the Elf Shrew was renamed to Shrew and players received an Elf Hat for every Shrew they had.
Elf Hedgehog (Hedgehog)
The Elf Hedgehog (now known as Hedgehog) is a pet that costed 80,500 while it was available in the shop. It is classified as Ultra-Rare. After the Dress Your Pets Update, the Elf Hedgehog was renamed to Hedgehog, which players received an Elf Hat from each Hedgehog they had.
Advent Calendar Pets
The Reindeer could be collected from the Advent Calendar on December 25, 2019, which was also the last day the Advent Calendar was open. It is classified as Rare. It uses the same model as the Arctic Reindeer. The Reindeer has a brown body with black eyes and two large beige horns.