Japanese people sometimes are playing with kanji, just like in this movie.
If you are studying Japanese language, I will recommend this funny movie.
There are a lot of original kanjis which do not exist in a dictionary. But we can understand their meanings because each part of kanji has each meaning.
The most interesting kanji is in the last part of the movie. Can you imagine how to describe “Gundam – a very famous robot- ” in kanji.