Evil Borty is from an alternate universe in which he is a cloned and altered version of a genius Morty. Borty was also raised by Black Rick (there are conically a set of universes where this is the case). And Black Rick took him under his wing because he saw the benefit of having such a companion as opposed to just an idiot. But the Bortys grew to resent Black Ricks because of their treatment of Bortys, chaos ensued, resulting in the Black Rickocaust. Evil Borty is on radio rotation with the track, “Jeepers Creeper’s Thong In Ya Mouth”.