Ray Sanchez was already Mr. Monstro; famed Mexican Luchador. One day while helping his father tend cattle, a meteor fell out of the sky and landed near him. It wasn't enough to cause any severe damage; all it did was frighten the cattle. It was the radiation inside that effected Ray and activated his dormant super gene.
Mutating with orange skin and spikes from one shoulder, Ray truely became Mr. Monstro. Donning a new mask to hide his features, he was not feared in the mexican and latino communities; he was praised. Fighting supervillains, aliens and ghosts, Mr. Monstro became a legend in Mexico and California.