We're going to be dealing with our share of Batmen from alternate Earths, time periods, et cetera. Probably the first one in the comics was the Batman of Zur-En-Arrh, who debuted in 1958. This garishly-clad hero was the defender of his far-off world who transported our Batman there to help him fight a criminal invasion of giant robots. Grant Morrison brought him back more than fifty years later as part of his Batman R.I.P. storyline, explaining that the Batman of Zur-En-Arrh was actually a delusional personality implanted by Bruce Wayne into his own mind to keep himself going under mental attack.