The Vuldronaii were one of the many beings that had worshiped Gozer the Traveler. Unfortunately, they were also one of the many victims of Gozer's apocalypse when he destroyed them in the form of a large, slow moving Torb. 
In Ghostbusters: The Supernatural Spectacular, Vinz Clortho is said to be filled with the strength of the Vuldronaii. He opens his mouth and lets out a roar that snaps the blade off a knife of a mugger and tears out bricks from a nearby tunnel. 
- ↑ Vinz Clortho (1999). Ghostbusters - Chapter 20: Keymaster (1984) (DVD ts. 1:01:17-1:01:37). Columbia Pictures. Vinz says: "Gozer the Traveller. He will come in one of the pre-chosen forms. During the rectification of the Vuldronaii, the Traveller came as a large moving Torb! Then during the third reconciliation of the last of the Meketrex supplicants, they chose a new form for him, that of a giant Sloar! Many Shubs and Zulls knew what it was to be roasted in the depths of a Sloar that day, I can tell you."
- ↑ Mueller, Richard (August 1985). Ghostbusters: The Supernatural Spectacular, p. 203. Tor Books, New York NY USA, ISBN 0812585984.