Mimi Good, Bibi Bad Game

How to play the game "Mimi Good, Bibi Bad Game"?

Although Mimi is always so good, everyone knows she has her moments of mischief - even pure evil! Nobody is perfect, and much as Bibi might make mistakes she has a heart of gold! These two sisters may look alike but they don’t have much in common but can you decide who’s really good and who’s really, really bad?