Characters bleed lightly in the film, as the Kree species are shown with blue blood on their faces and dripping from their noses at times.
A character shoots an alien in the chest, causing them to bleed from the mouth and lie on the floor in pain. The character then executes the alien with another gun blast offscreen.
Various sequences of comic-book stylized violence and action scenes. These includes several villains being beaten up in fist fights and pummeled across the screen with energy blasts.
characters are shot and the lead destroys a lot of spaceships
Various punching, kicking, body throws throughout as seen in the preview. Mild bloody noses etc. are shown.
An elite soldier team takes on others. Their foes are sniped, shot from close range and smashed. Not very many dead bodies are shown, but we can assume many of them died from head shots or other heavy trauma.
At least five people are shot in the chest at close range. Some die from the blast, others do not. One receives a follow up shot (probably to the head) that clearly finishes him off & though it is offscreen there is a dramatic impact that makes it slightly disturbing.
While a Skrull is laying on an operation table, it's seen with its stomach cut open, briefly showing the ribcage, and organs are seen being pulled out. It could be disturbing to some viewers, but it's brief.