A comic. Collecting The Sandman #32–37, 1991–1992. Written by Neil Gaiman. Art by Shawn McManus, Colleen Doran and others.
The Sandman: A Game of You tells a fascinating tale of lost childhood dreams and the power that they can wield over reality. Since she was a child, Barbie has dreamed of a world in which she was a princess. But after separating from her husband, she has ceased to dream and her fantasy kingdom has been savagely overrun by an evil entity known as the Cuckoo. Now as elements of her fantasy world cross over and begin to drastically affect reality, Barbie and her friends venture into the realm of dreams to save its peaceful inhabitants. But against the power of dark and dying dreams, even the combined might of a witch, two lesbian lovers, a transsexual, and a decapitated talking head might not be enough to save two different planes of existence.