There is a big fight at the beginning of this movie, but it's more comical than downright violent.
The only really bloody scene is the one where a raccoon gets run over by a car. A large pool of blood is seen under the raccoon afterwards.
Some violence towards the raccoons, which in turn gives violence towards humans as well.
There is a fight scene between the racoons and police officers, where the raccons bludgeon the officers with their testes (see above), and the racoons are beaten with batons. Several racoons are seen killed, but the violence is not severely graphic.
~edit to emphasize that the raccoon's TESTICLES enlarge to a huge size, they then use them to hit the humans. They hit humans with their balls.
Also in one scene the raccoons kill several workers in trucks at the construction site by tricking the trucks to go off the edge of cliffs. No blood or gore shown.