Wonder if they're a true siamese twin; if there really are two individual kitties in there. Because the faces look pretty distinct and like they could function on their own, but judging from the head size I'm guessing most of the brain is shared.
"Oscar the cat may have lost one of his nine lives, but his new prosthetic paws make him one of the world's few bionic cats.
After losing his two rear paws in a nasty encounter with a combine harvester last October, the black cat with green eyes was outfitted with metallic pegs that link the ankles to new prosthetic feet and mimic the way deer antlers grow through skin. Oscar is now back on his feet and hopping over hurdles like tissue paper rolls."