There are several fight scenes, which involve fists, guns, and blades (stabbing and slicing).
A bullet is shown passing through a superhero's leg, in close-up bloody detail. Another scene shows a man stitching up his wound.
A woman is shown with a knife in her chest with somewhat bloody detail. Brief.
In an extended scenes, hero's pursue villains, save people in danger, and rescues babies falling from buildings.
A man jumps from his hiding place and fight two people in a room.
A large scale, extended battle with many fighters, weapons, and destruction.
A scene is shown twice, including once as a flashback, where many people are injured and killed by impact using large weapons.
A group of villains suddenly fire devastating weapons on a groups of solders, killing them.
Heroes are killed or injured repeatedly, as part of a time loop. Somewhat graphic but minor blood and gore.