This movie exists to showcase how every schlocky B movie of the '80s looked and sounded like and to ridicule that by exaggerating all of the bad tropes and characteristics of those films. It is all done intentionally and it's an homage to those very niche films that everyone has watched at least once in their lifetime.
Everything is here: the terrible alien costumes and low budget sets and all-around production value, terrible accents, acting, awful one-liners, and every cliche possible from that era. Music is styled in a synthy way and fits very well.
What is bad is the movie's run time. If it was all focused and condensed in a one-hour movie or even less, it would've been much better. This way you pretty much know after the first 10 minutes what you are getting and it is not really funny or fun to ''enjoy'' it in its entirety. I found it amusing enough to watch it, but I get it if people get tired of it and turn it off. I was thinking about it too. Another problem is comedy. I giggled 2 or 3 times but I cringed throughout the whole film and it can get tiring as the jokes have no breathing space. It is a pretty good movie to laugh at which is its purpose.
I liked some of the jokes and the performances because I love the RLM crew but all in all, this is a below-average parody that even parodies a parody (Scary Movie)...