None.

Because of a speeding car, a horse-wagon gets loose from a horse and gets destroyed.

Toad crashes several cars throughout. He is shown to have been injured after one of the crashes.

Rat fires his gun into the air to scare some weasels away.

Mole stumbles on an object and gets hurt in the leg.

Two bunnies jump away from their rowing boat, before they could get hit by a speeding car.

Badger hits Toad with a cane. This happens off-screen, but we hear the punishment taking place.

Toad pretends to be dying by a sickness.

Toad is kicked into jail.

Toad is kicked away by a train driver.

Several weasels aim their guns and rifles at Rat and Mole, who slowly walk away.

A cartoonish brawl near the end.

Just some mild insults, such as "fool" and "stupid".

A gang of weasels is shown to be drunk near the end.

Some of the trees inside the Wild Wood appear to have demonic faces, something that could scare some little kids a bit. But nothing bad is gonna happen.