Kabegami (壁神) is the Celestial Brush God of the Catwalk technique, represented in the Chinese Zodiac as the cat. She is found at the Catcall Tower after reaching the very top floor and feeding the cat on that level.
Kabegami is a white cat with the red markings similar to the other gods in Okami, sitting vertically on a painting with a giant koi on the top of the frame.
The cat does not exist in the Chinese Zodiac, because, as legend goes, the rat tricked cat by telling her she would wake her up from her nap in time to be accepted. However, when the cat fell asleep, the rat took her place instead. This is why cats and rats are mortal enemies.
Alternately, the Vietnamese zodiac substitutes the cat for the rabbit in the regular twelve-animal cycle.