Rollypollidar

A giant meat-eating caterpillar. It has a tough jaw capable of not only chomping through sand and rocks, but bedrock as well. Its rock-hard exoskeleton makes it difficult for attacks to go through, thus making this monster a mighty challenge to new adventurers. But its underbelly is a bit soft, which allows attacks to go through effectively, so staying calm and aiming for its vulnerability will make it easier to defeat.