You may not notice it at first, but Planet Popstar holds a little secret, an Easter Egg of sorts. In order to discover it, all you must do is look at the name of the levels found in this world. If you look closely, the first letter of each level going down in order will spell out the word "Friends". In this Kirby Game more than any other, Kirby will need the help of his friends to stop the evil that is found.
Friendly Field
Reef Resort
Inside Islands
Echo's Edge
Nature's Navel
Duplex Dream
Sacred Square