Zombies eating people, zombies getting shot. There is a fair amount of gore in this film. The majority of it is done for comic effect with laughably poor CGI.
Some gore highlights: zombies eat eyeballs, gnaw on a severed hand, people disemboweled and entrails eaten, severed limbs seen throughout the movie, several scenes of numerous dead zombies, baby coming out of a bloody stomach
Some violence highlights: zombie smashed into a wall by a grocery cart, many zombies shot, a guy's throat is slit, a sword used to slice people, cut off limbs and heads, legs torn off, a guy is shot and killed, his guts spew out, zombie hit by a car, zombies die in explosion at gas station, zombie hit with a hoe, thrown knives stab zombies, zombies punched, zombies machine gunned, hit by golf balls, hit with a rolling pin, hit with an umbrella, hit with a golf club.