When you catch all the normal rabbits, shining/glowing rabbits usually appear. However, if you catch all normal rabbits for one character ( for example, Mario), you can catch more than two rabbits with him. You can actually catch all the glowing rabbits with one person. They appear in locations where other rabbits are found; check where you have seen rabbits for that person. Once you catch eight, the door beside Wario's door will open, containing only one Star.