Almost as if broadcast through an extensive speaker surround-sound system, Baldas' words echoed around his surroundings.
The power behind Baldas' words surprised Captain Gunnel and the Hungry Hogs Corps. But that alone wouldn't have been enough to make them halt their advance now that they were only a few seconds from reaching the first row of buildings of Vanitapolis. Baldas could have a sound amplification ability and was trying to use it to scare them and buy more time.
Considering Baldas' stature, it wouldn't be strange if he had an ability of the more auxiliary or supportive kind since it was clear he wasn't a combative demon.