Graboid/doc

Graboids can be found with their little brothers, giant worms, in dirt and grass terrains. They can only move on terrain that can be dig through, so characters standing on a road are completely safe from them. (Just don't stand on the edge and presume they can't hit back: they can.)

This enemy is a reference to the movie Tremors, in which the two main characters fight giant underground worms called Graboids.