[sodacat]

I think transformation in general is pretty uncommon. The "respectable" ones make the sexual content minimalized enough so that they can eventually, hopefully, get a chaste anime version and sanitized console ports. The rest are build factory style; as quickly as possible. They have people who have a talent for drawing naked ladies in a number of positions and for doing so quickly. Anything too far from the standard model makes it more difficult to draw, and not worth the effort. I haven't looked for BE specifically, but I've seen quite a few that reportedly have "monster girls", and their definition of "monster" is having a horn or a stubby tail.