Ursaluna is a large, quadrupedal dark brown bearlike Pokémon with a gray pelt around its back, paws, and round tail. The pelt has nine rectangular brown spikes on its back and four rectangular spikes on each side of its head. The front paws have five claws each while the back paws have three claws. Its face has a light-yellow circle resembling a full moon on the forehead, two gray eyebrows resembling clouds, and a light yellow snout that contains a small, black nose and sharp canine teeth.
Ursaluna's evolution is believed to have been triggered by Ursaring being exposed to the swampy terrain of the Hisui region during a full moon. Ursaluna's physique allows it to travel through the swamps with ease, and it can also manipulate peat to its advantage. Ursaluna are known to be good at searching for items, and even missing persons, using their sense of smell.
A special Ursaluna is worshipped in Hisui for being a descendant of the ten ancient Pokémon blessed by Arceus. He is one of the Ride Pokémon who resides in Crimson Mirelands and assists humans.
Forms
One notable Ursaluna has a non-interchange form called Bloodmoon Ursaluna.
His appearance is similar to that of a regular Ursaluna but he now walks on two legs. His fur keeps its brown coloration and the full moon-like circle on his head is bright red instead, now resembling a blood moon. His left eye is black with a green pupil, allowing him to see in the dark. His hands, legs, chest, back, and the right half of his face are covered in his now-grey mud that is as hard as iron.
He is known as the Bloodmoon Beast. This Ursaluna originated from the Hisui region. He traveled from there all the way to the Timeless Woods of Kitakami overseas by unknown means. Due to adapting to the environment of Kitakami, he has special powers. He prefers to stay away from humans. This Ursaluna is capable of living a very long time and is hundreds of years old. He prefers to show up during foggy nights. Bloodmoon Ursaluna is always male. He is the only Ursaluna that is known to exist in the present day.
Bloodmoon Ursaluna is the only known Pokémon that can have Mind's Eye as an Ability.
Evolution
Ursaluna evolves from Ursaring in Hisui and is the final form of Teddiursa in the Hisui region.
Origin
Ursaluna may be based on the Ussuri brown bear, a subspecies of the brown bear native to Hokkaido (on which Hisui is based) and its surrounding areas. Its mountain-like body shape and Ground type may refer to Kim-un-kamuy, the Ainu god of bears and mountains, or the fact that Ussuri brown bears mostly live inside burrows excavated into hillsides. Its affinity with peat may be inspired by the real distribution of Ussuri brown bears around former coal mines like Yubetsu, Akan-chō. The pattern on its head evokes the image of a full moon shining through clouds.
Bloodmoon Ursaluna might in addition be inspired by cyborgs, given parts of his body being clad in iron-like mud and one of his eyes having enhanced sight.
Name origin
Ursaluna may be a combination of ursa (Latin for bear) and luna (Latin for moon).
Gachiguma may be a combination of 月輪 gachirin (round moon) and 熊 kuma (bear).