You can make the hyper-violence in Marvel's Wolverine more PG-13, if you want to

The X-Men don't exist in Marvel's Wolverine, and while Spider-Man does, he'll only appear fleetingly in an "Easter-eggy" kind of way

Marvel's Wolverine is incredibly violent but Insomniac says it needed to be, and there's a way to turn off a lot of the gore

Insomniac Games' Wolverine looks comically violent