The Arribra is a cryptid from Mirra's hometown. Because it has never been seen except for its footprints and a slight glimpse, its appearance is just a guess. It is most likely white, and it is fast. The Arribra has 6-7 toes on the front paws, and three on the back paws. The front paws are shaped similar to a bear and about as long as a human's. It is presumed that it eats oranges and sunflowers.
- The Arribra's name is a combination between "Arriba," the spanish word for up, and Chupacabra.