Wetnosaurs are enemies in EarthBound, fought in the Lost Underworld. They have the appearance of a green dinosaur with a large black nose. Wetnosaurs can stomp with a huge foot, swing their tail very hard, bite, or make a loud rumble to solidify a character. Wetnosaurs can only be fought one at a time, and are vulnerable to PSI Fire and PSI Freeze.

Early Concept Art

Lost Underworld Concept

In the Mother 1+2 Art Book, early concept art of a Wetnosaur and Chomposaur in the Lost Underworld shows that the Wetnosaur changed little from its original design.