Urek Mazino once discovered the Red Thryssa during his last visit to the Floor of Death. At that time it was still weak, however, Urek realised its power had properties similar to that of a Guardian. At first, Mazino wondered what to do with it. Ultimately he decided to hand over that power to a person who would use it properly. Having encountered Hell Joe at one of the holes on his previous trip to the 43rd Floor, Urek deemed Joe to be suitable to use its power, entrusting it to him, thus Hell Joe acquired personal usage of the Red Thryssa's powers. After its defeat at the hands of Urek Mazino and Baam, it appeared as a red orb that went inside Baam. Urek Mazino was surprised that he felt the Red Thryssa inside of Baam.