Cartoon violence, mostly. Jon suffers countless injuries when following his father around. Up to and including injuring his eye, his leg. A gang member breaks his arm. Bones are heard breaking.
Harry fires a gun at them and when Jon tries to take it away, it goes off near his ear. Blood is seen.
Jon is hit by a car door after it explodes.
A car collapses on Jon's leg.
Jon dangles from a plane.
Jon falls off his balcony and a flagpole hits him between the legs. Men will find this part very disturbing.
Jon's mother suggests she help her and his father commit suicide to collect their insurance to solve his financial woes, and the remainder of the film is Jon helping his folks end their lives, but each time is unsuccessful and in all but one instance, Jon suffers a mild injury. In the end, he convinces them to live.