Wow, that was ... creepy.
If you enjoyed the Ring, you'll probably enjoy Toshi Densetsu Monogatari Hikiko (Urban Legend Story Hikiko), the same for if you're a fan of Silent Hill. The CGI is somewhat dated, in my opinion, but it's a creepy and chilling horror anime that doesn't skimp on the scares. There's a hell of a twist at the end, too, one that Shamalan might have come up with.
Story: 8 - Like the killer big sister, it starts out slow but builds relentlessly, coming straight for your throat.
Art: 5 - Dated CGI is dated. Watch the new Appleseed movies and gawk at how far the technology has come in a short time. Some nice detail on the faces, but the arms look all gangly and wrong.
Sound: 8 - Great voice acting and use of dramatic music.
Character: 7 - About as well-developed as could be expected for a 45-minute movie.
Enjoyment: 9 - I was pretty damn riveted, and scared to boot.
Overall: 7 - Not the best, but I enjoyed it.