In ancient times, those huge beasts were known to destroy everything that was evil and wrong. Nowadays, they simply eat anything that comes their way, from living creatures to stone and even iron. Sometimes, one might find a lost artifact or rare piece of equipment in the stomach of a bulgasari. They mostly hunt at night inside forests all around the realms.

The bulgasari stores a large amount of water and, with a body temperature much higher than other beasts, the water boils at all times. When scared or severely stressed, the beast can expel this water as scalding steam in an attempt to hide and escape. In some large cities, tamed bulgasari are used as beasts of burden.