What are some of the worst/wierdest lesser-known "Official" sequels to popular works?

Cafe Society
69

There’s a novelization to the 1993 Jean Claude van Damme film Hard Target !!! (It is not by Alan Dean Foster though.)

https://www.amazon.com/Hard-Target-Movie-Robert-Tine/dp/0425138615

Edit: I started a new thread about the weirdest novelization/movie tie-in product you have seen.

https://boards.straightdope.com/t/whats-the-weirdest-novelization-or-tie-in-product-you-have-seen-for-a-movie/925245