The British team of director Stewart Sparke and writer Paul Butler made The Creature Below, a low-key Lovecraftian mood piece, but lighten up here with another all-purpose ‘80s homage. The stated aim is to homage the likes of The Thing and Gremlins, but of course the more meagre resources available to this crew and the mere fact that it’s a homage rather than an original mean that the results are more likely to be compared with The Deadly Spawn and Ghoulies – which is no bad thing, especially since this has a proudly British, Northern feel to it that contrasts with Yanxploitation efforts.

- https://johnnyalucard.com/2018/08/29/frightfest-review-book-of-monsters/