Several destruction scenes with the monsters destroying Japan.
When Godzilla and King Ghidorah fight, Godzilla is nearly choked to death with foam coming out of his mouth. Later, he blows off Ghidorah's middle head.
A short war scene between Japanese and American soldiers. Next to no bullet impacts are shown.
The "Godzillasaurus" attack scene involves the dinosaur stepping on and killing many American soldiers; also killing them in other brutal ways. The dinosaur is then attacked by a battleship, and bloody wounds cover the creature's skin. It also bleeds.
M11's wounds look quite disturbing and gory.
When King Ghidorah and Godzilla both attack, it is implied that many people are killed. Only a handful of people are actually seen being killed, and with little to no blood at all.