The Boxachi is not a purebred dog. It is a cross between the Chihuahua and the Boxer. The best way to determine the temperament of a mixed breed is to look up all breeds in the cross and know you can get any combination of any of the characteristics found in either breed. Not all of these designer hybrid dogs being bred are 50% purebred to 50% purebred. It is very common for breeders to breed multi-generation crosses.
Tawny the Boxer / Chihuahua hybrid dog at 4 years old—"Tawny was adopted from an animal rescue hospital in Gainesville, Florida. I was told that her father was Boxer and her mother a Chihuahua and that her mother did not survive the birth of her only pup."
Tawny the Boxer / Chihuahua hybrid dog at 5 years old—"Tawny loves people, especially children. She loves to fetch and chase balls and toys. She likes to chase squirrels around tree trunks. She knows to leave snakes alone."