yes beato, Chaos;Head has been animated but from what i have heard alot of it was cut out and replaced by filler.
i disagree about it going downhill though, i feel as it reaches the end it only builds.
hoh Bud. the fact that that scene was only text+ voice made it even better , because i could use my imagination. And my imagination is what makes scenes like that all the more disturbing. i suppose having an active imagination , like i do , makes all of the surreal "mindfuck" aspects of this particular VN so intriguing to me