Anti-Kirby (カービィ, Kābī) is an enemy that appears in The Legend of Zelda: Link's Awakening. They only appear in one dungeon.
The only Anti-Kirby in Link's Awakening is found in the Eagle's Tower. This enemy is likely based on a popular video game character by Nintendo, a pink puffball character known as Kirby. The Anti-Kirby is not a very threatening enemy, as they do little damage and are quite easy to avoid. It hops around the room without any real direction and randomly jumps off the ground and sucks air into its mouth.
Link's sword does not harm the Anti-Kirby at all, so the best way to defeat one is to swing the Magic Rod at it or hit it with the Boomerang. Bombs also do damage, but may be harder to aim. While it is sucking air in its mouth, it slowly pulls Link towards it. It is easier to run away from it rather than trying to defeat it.