There are brief scenes of very mild threat which occur within a fantastical setting on the moon. Characters free fall into space after their spaceship fails and are chased by large colourful flying animals, but none of these sequences sees them come to any harm. There is a scene in which it appears that a girl has fallen into space and her friend becomes slightly distressed thinking they've lost her, but it is quickly revealed that the girl has hidden herself under a floating pink button. There is also reference to an "interrogation chamber" where a boy is taken after he is found trespassing, but it is soon revealed that he is there to compete in a fantastical table tennis contest.
There are some very mildly upsetting scenes as a girl must come to terms with the loss of her mother. The girl is helped through her bereavement by her family and her pet rabbit. The journey to the moon also provides the girl with uplifting and affirming beliefs that help her, and those she meets, come to terms with their feelings of loneliness.
Very mild rude humour includes a dog's underpants being pulled off, a boy using his backside to field a ping pong ball, and a scene in which a boy is called a "ping pong poo". There is an innocuous reference to suicide as a character exclaims how treacherous their chosen path is during a very mildly threatening sequence in which colourful hailstones fall down around them.