How many types of Kai Ken are there?

There is one breed of Kai Ken, but within the breed, there are two distinct body types or varieties based on their physical appearance. The shishi-inu-gata (boar dog type) has a more stocky, muscular build with a broader head. It is robust and powerful, suited for taking down large game including wild boar. The shika-inu-gata (deer dog type) has a leaner, more slender build with a narrower face and longer legs. It is typically faster and more agile, suited for chasing smaller game like deer.