User blog comment:DarkBlocklandGuardA2/Ben 10 Stock Roar Sound Effect Link?/@comment-29178436-20190622085408

UPDATE: I have found this sound again in yet another episode. It was only heard once in "Dr. Animo and the Mutant Ray", where the HeatBat is charging at the airboat before Max swerves the boat away and splashing the HeatBat with water, causing it to fly away to Animo's hideout. However, it is heard in a higher pitch.