Mr. Bobinski's Mouse Circus is, as it implies, a circus led by Mr. Bobinsky that is made up entirely of mice. In the Real World, the idea he could actually make a mouse circus was highly doubted by the others, in the Other World, the mouse circus is very real and the little performers put on amazing shows. However, the mice do seem real as they tell Mr. Bobinski to tell Coraline not to go through the door to the Other World. They even get Coraline's name right while everyone else calls her Caroline. After the Other Mother is defeated, Mr. Bobinski tells Coraline that the mice say she is their savior and are willing to do a special performance just for her.