None.

A fish uses it's tail to slap main character Louis in the face.

A man briefly kicks another man's foot.

A man makes a brief reference to heads being chopped off.

A man makes a brief reference to getting an axe on neck.

Unless you count with the above mentioned scenes, there is no actual violence.

If anything uttered, it's mostly "fools". "Stupid" is mentioned a few times, much later in the film.

None.

None. This is a children's animated film.