Dumplings are round enemies that fly around aimlessly and fart. They fart whenever Isaac gets close, upon taking damage, and upon death. Farts knock Isaac back and propel it forwards.
Skinlings are a pale variant of Dumplings. They behave similarly, but their farts are poisonous and can damage Isaac.
Scabs are a bloody variant of Dumplings that actively chase Isaac. Upon death, they fart and fire six blood shots in all directions.