Personally, I think this particular mod could be done a bit better, but I am incapable of fixing it.
What else is needed:
#1. In addition to a shrine, a "safehouse" baseplate, of adjustable size (if you need help with how to do adjustable size, look in the ZAPT code because it has a safehouse brick with adjustable size), where not only can Renderman not kill the player, he cannot spawn on it at all and will not target players who are on one.
#2. Fixing the "lights off" bugs (such as resetting lights to Player's Light; if that's been fixed, disregard this complaint)
#3. Variable chances of the Stalking behavior; for a more intense game, the chances of stalking could increase. Either that, or create a separate function for "getstalkchance" so that we can eval it without much trouble.
#4. A few other behaviors need to be tweaked a bit; also, a pref for allowing more than one to spawn at once (Neurotoxin's record is 3)