Listen to the sound clip BB monstro from BB monstro Soundboard: BB monstro BB monstro This sound is from BB monstro Soundboard BB monstro. The sounds of this enigmatic entity, a beast both feared and revered by those who have encountered it, are a cacophony of haunting wails and guttural growls. It is said that hearing the rumbling roar of the BB monstro is… Go to the full soundboardwith more sound clips Search