Wormonger

Wormonger is a titanic worm monster that roams Treepidation in Dragon Quest Monsters Joker 2. At day it goes out its tunnel in a set path when this happens all monsters will run for cover. At night it can be found sleeping in one of the caves and it is possible to enter its stomach. Like all giant monsters it's not recommended to fight it until much later in the game, preferably after the main story is completed because that's when it can be recruited. Its stomach contains a parasite, called a Hyper Heyedra.