Moonstar is a mutant with the superhuman psionic power to create three-dimensional images of certain visual concepts from within the minds of herself and others. Originally, Moonstar could only create images of the objects of other people's greatest fears. Later, she learned how to reach into another person's subconscious and project an image of the object of that person's 'heart's desire.' Still later, under Charles Xavier's further training, Moonstar learned to use her power to derive and project more specific images from another person's mind that were unrelated to such strong emotional states. Moreover, she learned how to project such images around herself and others in order to alter the appearance of herself and others. For example, once she and her teammate Cannonball, neither dressed impressively at the time, had to find Wolfsbane at a stylish hotel. In order that she and Cannonball would look as if they belonged in the hotel, Moonstar made herself and Cannonball look like the desk clerk's mental image of the ideal wealthy guests for the hotel. Most recently, Moonstar has learned to project three-dimensional versions of images from her own mind, such as life-size images of the New Mutants training in the use of their powers.