The myth is influenced by the story of Three Billy Goats Gruff, based on the story of a hideous troll under the bridge. The troll is inclined to eat anyone who tries to cross the bridge. A similar myth is said to exist in GTA Vice City. Around the Vice City, there are a number of bridges with abutments of considerable sizes with a possibility that these serve as residences for such a creature.
Several players have reported that these trolls occur scarcely and do attempt to disturb the player, but aren't as hostile as described in the original myth and tend to shy away, once sighted. Locations like Leaf Links, Vice Point, Vice City River, and Washington Beach are the hot spot regions for such sightings. However, these reports are mostly fabricated stories or fan-fiction and lack any authenticity about the existence of such a creature in the game.