Pig
Pigs are animals in the Real World. They also appear in the Marioverse, in multiple games. They first appeared in Super Mario Land 2: Six Golden Coins, as bosses known as The Three Little Pigheads, who were three pigs that poked fun at the story of the three little pigs. They next appeared in Paper Mario under the name of Li'l Oinks. These pigs are used to get certain items. Appearing again, a strange hog like creature named Hoggus appears in Wario Land 4, the strange Hoggus could even make Pigs appear by sketching them on his pad. Pigs then appeared in Paper Mario: The Thousand Year Door, which had Doopliss turning the citizens of Twilight Town into Pigs with the ring of a bell. Doopliss was defeated, and everybody was eventually turned back.In Super Paper Mario there are several foes that resemble pigs (such as squiglet and pigarithm)