None.

Several small animals try to catch a frog. Non-violent.

A wolf attempts to attack some small animals, but fall into water.

An angry wolf kicks multiple mushrooms in rage.

A wolf kicks a fox away.

A wolf attempts to attack several small animals once again, only to get hit and shot with multiple objects and get hurt.

A wolf smokes it's cigarette, and blows some smoke at a fox.

None, unless a small child may find the wolf to be scary-looking. Otherwise, this Soviet animation is perfect for children.