Fuse Teppō Musume no Torimonochō (Dog Transformation)

Fuse Teppō Musume no Torimonochō (伏 鉄砲娘の捕物帳, "Fuse: A Gun Girl's Detective Story") is an anime feature film, and "fuse" refers to a race of half-human half-dog beings who consume human souls. Shino, the fuse star of the film, looks human, but with each soul he eats turns more dog-like, so that by the end he resembles a lanky werewolf. The final transformation is well animated, with muscle and fur seeming to stream across Shino's body.
This clip was edited together from several different scenes in the film, so keep that mind...