A dog is swallowed whole by a shark. Not gory but will probably be used as a jumpscare. Later the dog is shown to be alive (along with 2 others) inside the shark's mouth.
2 players' avatars are burned to death by flamethrowers. Nothing is shown but chalk lines where they used to stand. Players are shown afterwards complaining that they have to start over. (Not really that violent, but this is the most "violent" scene in the movie.)
A video game character is almost crushed to death by a giant
2 video game characters almost fall to their deaths.
In the aftercredits, a bunny is over-fed and explodes. Although this is offscreen a small child screams because of this and children may find this disturbing.
The Disney princesses have defense objects to aim at Vanellope. It's stopped when she tells them she too is a princess.
An insect is stepped on until it explodes.
Pyro shoots game players with a fire gun and they dissapear, then a game over screen is shown, and there is picture of a clown head with a pool of blood around it.