Maybe Pandora could do that at the temple boss. You can play ur own sprite-and make it's look too! Just keep in time that they are the size of a small child, and that they are hind-leg standing animal-like creatures, like how Nekochi is like a cat that stands on it's hind legs. They all have wings two. Other than that, just be creative!
Remember the transformation ranks? You can start at Noble like Naju, if you want. If not, the first rank is Pheasent.