yes, I'm the co-dev and I know of the sprite change
the second half I just dont understand, and all the other characters have humanoid legs. the reason why Koshiro had foxy legs while everyone else had normal legs is because Koshiro was the first commission from slick
i actually liked the fox legs :3 it gave him a bit more personal flare to him that i really liked and made him visually unique but thats just me :3