It’s a thing you have to collect in bowser’s Fury. There is a total of one hundred Cat shines and I have at least seventy cat shines. My classmate calls the cat shines “cat shrines”, which is not the proper name.
The cat shines have different locations. on an island, catching bunnies etc. If a cat shine goes to a light house then that means there will be five cat shines on that island. Sometimes you get a cat shine for just finding it or something else that gives you a cat shine. Sometimes you have to collect five cat shards to get a cat shine.