There's a long chase in which Riggs fights an bad guy in the back of a truck while two cops follow. One of the bad guys is knocked out of the truck, but survives. Riggs climbs to the front and knocks out the bad guy driver, throwing him through the windshield and stopping the truck. As the bad guy driver wakes up, Riggs punches him again, knocking him out.
A building explodes in the beginning of the film, but no one is harmed.
There is a large-scale car chase towards the climax of the film, in which one of the main characters chases some bad guys on a motorcycle. The motorcycle is seen crashing, and the character riding it is seen falling from a great height, but he survives, with a dislocated shoulder.
Lorna Cole beats up several attackers while Murtaugh and Riggs watches them.
Murtaugh and Riggs gets into an argument and briefly fight on a boat, and they fall into the water.
Travis shoots at Billy several times, point-blank, killing him.
There's a large shootout in a subway station and several men are shot and killed, and much heavy gunfire is exchanged.
There's a brief fight in a warehouse in which Riggs and Lorna fight off a group of bad guys. Lorna punches and kicks them, and Riggs brutally attacks them, before both escape in a truck.