I am only going to mention the high and low of this movie here.
High: The late great Stan Winston might have just peaked his stellar career with Kothoga. Sure, it's not the humanoid from the book, but, once you see it, you won't care. A monster movie can get away with not being a true horror movie if the monster is cool enough to carry the show on its spiny back, and Kothoga could carry a franchise, right up there with Predator, Alien, and the Moorwen from "Outlander." (Sticking to my promise to mention only the top and bottom, I will belay my rant about dim lighting and the mind-bogglingly common belief that audiences never actually want to see their monsters. All I'm going to say at this point is watch South Korea's excellent "The Host," and you'll see the difference ... in broad daylight, in the first ten minutes!)
Low: We have the beautiful Penelope Ann Miller and the world's coolest monster together in the same movie. So whose idea was it to put a blood red mockery of Edvard Munch's "The Scream" on the box and call it cover art? Seriously, people, this is a genuine B movie with endless pros and cons, and the decision of whether or not to buy it literally came down to the cover for me. I hated it so much, I passed on the purchase. With a teen-slasher cover like that, I would expect the title to be something like "Sleepover Slaughter 3: Burnt Popcorn Aftermath." Of course, Blue-Ray has an improvement with its "chomping fangs" cover, and the German version has an appropriately chilling picture of the unwelcoming museum, but, for those of us with DVD players who only speak English, we're stuck with screaming boy ... or girl. I can't even tell which it is at this point.