I watched this movie as a kid in a 40 degree celsius fever and suffering from a pharyngitis. The paintbucket-swirl-of-a depiction of space haunts me to this day.
Dumb. Dumber than Flash Gordon originally was. I like FG, don't get me wrong, it's a wonderful movie and it's fun, but it's dumb as hell.
In fact, I'm pretty sure that any movie that's makes sense only when you're high on mescaline probably has a high factor of dumbness. "Batteries Not Included" being a perfect example.