Moving on to 3rd edition OA there are a few new monsters in this book that were not in 1e. Converting them here. I retained some of the standard vampire traits just to keep them consistent with each other.
HOPPING VAMPIRE
Curse of Vampirism. Any humanoid hit by a vampire’s attacks must succeed at a DC 13 Constitution saving throw or contract a curse that turns it into a hopping vampire. The cursed target can’t regain hit points, and its hit point maximum decreases by 10 (3d6) for every 24 hours that elapse as the creature grows fangs and becomes more bestial. If the curse reduces the target’s hit point maximum to 0, the target dies, and it raises as a hopping vampire. The curse lasts until removed by the remove curse spell or other magic.
Each hour spent hopping or dancing on pure sticky rice delays the curse’s onset by 1 day. (As with any physical exertion, a character can only dance on sticky rice for so long before tiring). Once the transformation has run its course, it cannot be reversed by any means short of a wish or divine intervention.
DESCRIPTION

When a body is buried improperly or in an inauspicious loca- tion, it often returns to activity as a hopping vampire, hungry to kill living creatures. The body is animated by the po soul (evil portion of the soul) of the deceased; the hun soul (good por- tion) is departed. Without the hun soul, the body is not truly alive, so it retains some of the rigidity of death. The spectacle of these creatures hopping around looking for victims would be ridiculous if they were not such deadly opponents.
The return from death gives the hopping vampires a green- ish tint to their skin, fangs in their mouths, and razor-sharp claws. They are usually dressed in funerary wear—either fresh and new or moldering with decay.
Hopping vampires are not the sophisticated, intelligent oppo- nents that standard D&D vampires are – this ecological niche is filled by the oni in Oriental Adventures. They behave much like rabid animals, attacking with their claws and fangs, giving little thought to strategy or tactics.
Banner Credit: “Hopping Vampire” by Azawindam.