None.

No gore. Violence minimal. Fight sequences (with clearly defined villains) kept light and played for comedy, suitable for a child audience.

None.

None.

The central character in the story is an orphan, who lives in an orphanage with other children who also have no parents. Extremely young children might find the general concept of orphans -- having no parents -- potentially disturbing.

The story does contain one brief ghost story. But it is very clear that the children are inventing the ghost as an expression of play, and that the 'ghost' does not exist.