Throughout the film there are multiple fight scenes, however the violence is not graphic and blood/gore is minimal.
There are some instances of moderate action violence, including a few scenes of fist fights, kicking and gunfire. Most of the violence has a comic element, and is much less violent than most superhero films.
A man slams a mans face down hard onto a table and we see blood coming out of his nose.
A man confronts another man in the Mens Room and shoots him with a futuristic gun which turns him into a small blob of goo that is still moving like a heartbeat. The other man wipes it off the floor with a paper towel. This scene does not put any emphasis on gore and the transformation is rapid.
Sight of blood is infrequent and discreet. A man is shot in the shoulder (recovers later) and blood shows through to his suit.
A baby lamb is experimented on and also zapped into pink goo. One character despises the action.
A villain enters a little girl's room and holds her hostage, picks her up and she screams. He doesn't actually harm her in anyway.
A villain dies after shrinking uncontrollably until he disappears. The scene is disturbing, as his arm and other limbs forcibly contract into his body.
The main villain and the hero are fighting each other in the final fight scene, it's very intense and the ants army sequence might be scary.