X NWO was an interesting ride. Really not much left by the time it changed to X. Even then X was just a very minimal change but with a new fun factor having some audio and lighting in the coaster area.
There were no animatronics, the robots were static. The light you mention was UV which always makes white glow such as teeth.
XNWO was a pretty convoluted concept which never quite worked as intended, but there was originally a lot more to it than the totally empty, bad experience it was in the 2000s. A whole lot more audio and the pre-ride walkaround. I always liked the 'theme' for a coaster, something different. Could have almost been the 'industrial zone' from the Crystal Maze but just never had the money for it.
It was never a classic ride but a fun experiment, more of a children's coaster. If I remember hearing it was originally 1.2m? Might be wrong on that but it was definitely not supposed to be a hardcore thrill coaster or really that "scary", just disorientating and strange.
There was no story, the theme was nothing to do with a computer either (other than the name, which was just a 'current' name for the day). Had it been done a bit better it might have been great fun and lasted longer.
Lots of misinformation was spread about it online in the 2000s I remember, that there was orignally some kind of "plot" about an evil computer. In 2007 some TVs were added with a cheaply made video telling about the "X super computer" going wrong, it was funny but pointless and removed within a year.