Brichasouras is a normally gentle beast, resembling the sauropods of ancient Earth, but with large teeth and a protective shell on his head. While he was one of the earlier mascots, the Brichasouras has been pretty reclusive, mostly opting to stay in his den and sometimes participate in adventures.
So far, the Brichasouras has participated in few adventures. He is most often seen at gatherings and parties. Bigbear once used some of its DNA in an experiment to create the titular kaiju known as the Brich King, the kaiju itself currently living in peace in the kaiju-pens at Castle Bigbear.