-( Story related, cannot be missed )-
The Momma Varmint, or the Lumping Pirate Queen, is found in the Candy Kingdom. She has two arm appendages you have to break before you can start whittling away her health. Once you've dealt enough, she will also have a chance to spawn little Varmints out of eggs she lays. Varmints are typically weak to ice and jinx, if I remember correctly, so you might want to use these to your advantage.