Really this Key and Peele sketch says it all. https://www.youtube.com/watch?v=x01l_jMhjVM

Simply put, like many riffed titles, did this movie need a sequel? The plot (ha, ha, ha- uhum, excuse me) is as follows: An army of malevolent little monsters take over a high-tech corporate skyscraper when a cute and intelligent exotic pet is exposed to water. The "Mogwai's" owner joins forces with the Trump-like head of the corporation to regain control. Come on guys, the thing almost writes itself. Let's do it.