A Pigarithm is an enemy that appears in Super Paper Mario.
In Super Paper Mario
Pigarithms are strange, pig-like enemies that are first encountered in the Whoa Zone of Chapter 4-4. Pigarithms commonly move around in rooms in a set pattern and can be defeated by jumping on their heads three times. However, each time a Pigarithm is stomped on, it shrinks in size and moves much faster. Defeating a Pigarithm releases a lot of coins.