In the "Superman Red/Superman Blue" one-shot (February 1998), a trap created by the Cyborg Superman working with Toyman, caused Superman to split into two beings who represented different aspects of his personality, though each believed himself to be the original. Superman Blue was the more cerebral entity, preferring to think his way out of situations and actually solve problems with his mind as well as his powers. Superman Red was more rash, but also more decisive, preferring action over taking the time to think. Over time, these two personalities grew more and more polarized and individual, to the point that neither entity wanted to become one Superman again.