>>43162541Eyes, wings and the wider-at-the-base hooves, ignoring K-Rapidash's eyes have irises/pupils, no wings and its hooves look like a real horse's do in proportion to its body.
It's meant to be a form of the original, which means there's meant to be enough similarities betwwen the two to recognise them as different flavours of the same creature (vulpix/Ninetales to A-Vulpix/Ninetales)