>>25105590According to the scientific logs found in the Pokémon Mansion of Cinnabar Island, Mewtwo was born from a pregnant Mew, found deep in the jungles of Guyana, whose embryo had been tampered with to alter it's DNA. It was held and studied in the mansion where a scientist performed horrific gene-splicing experiments that made it vicious and extremely powerful. It eventually broke free of the Mansion, destroying it in the process, and fled. It can be encountered in Cerulean Cave, accessible only after a Trainer has proven his or her skill at the Indigo Plateau.
