I read the "Gremlins 2" book around the same time. Called "novelization" of the movie. (what ever happened to novelizations? Oh, right. Hollywood no longer produces anything worth reproducing.)
Okay. The closest to that I have read is an Outlaw Josey Whales book. It had a second story with it as well. Maybe the Jurassic Park books are close, but they came before the movie I think.
I guess I read a bunch of Robotech books at one time which followed the same plot as the cartoon.