As the cute cat's name suggests, the reason for her unique appearance is likely because of genetic chimerism. This phenomenon occurs when one organism is composed of cells with more than one distinct genotype. It can occur in animal species as well as plants and even some humans! A chimera is derived from two or more zygotes and it can result in a mixed appearance (e.g. kitties like Venus and Quimera, or roses that are split into 2 colors).

These rare cat colors may as well be derived from extreme luck and simply be a very unique case of mosaicism. In this case, there is only one individual egg that just happens to have different active genetic expressions in its cells. This condition is much more common in cats than chimerism, however, it usually doesn't result in such a distinctly split two-face appearance and is very random. In the end, only a DNA test can confirm the former or the latter.