Princess (Paper Mario: The Origami King)

Princess is a female Chain Chomp in Paper Mario: The Origami King. She can be found close to the Café in Shogun Studios. When Mario searches for the Shogun Studios Master Key to enter the Big Sho' Theater, Princess blocks the way to the Ninja Attraction, where Luigi took the key to. Giving her a bone obtained from a trading quest in the park is the only way to calm her down. After giving her the bone, Olivia pets Princess and Mario obtains MAX UP Heart which raises Mario's maximum HP by 20.

When Luigi is found, he explains that Princess tried to bite his face off and ran to the Ninja Attraction to hide.