This is the second film for the completely nutso, potty-humored kids anime Dr. Slump. This one takes the characters into space to rescue their teacher.
I liked that they went into space for this one. It's a pastiche of sci-films and they have a lot of fun with it.
The space warfare scenes look really good. It's from the time when animation was very colorful and it works.
A lot of elements are off-the-wall, especially the villain and his mother who have to be seen to be believed.
This is the only feature length (90 min.) one in the film series. I can see why they didn't do this again. They just didn't have enough material to fill up the run time. Too many jokes run too long or are repeated too many times. The filmmakers especially don't know what to do with the main character Arale. She's always cheerfully oblivious in the show, but at least usually she'd have things and characters to interact with. Here she just seems off to the side for most of the film doing goofy stuff because she can't understand the importance of her mission.
As a westerner, I feel there were a couple jokes that were kinda creepy.
Overall, this is is an interesting film, but I wouldn't recommend it to a casual viewer.