He tries to maintain his heart rate by calming himself down,but it seems that he's able to bring out Hulk by will alone.
Bruce is a genius as an expert in the field of gamma radiation. After having exposed to the gamma bomb he gained another personality that is monstrous, called the Hulk, that he can change into after his heart rate goes at a certain point by getting too excited or angry.
But Bruce is a very nice guy and always helps out, even when it's very difficult for him to fit in with other people.
He is known to also be very smart and intelligent and he knows what he's doing when he's performing experiments in his lab or workplace.
Upon their arrival, Dipper and Mabel's huckster great uncle, Grunkle Stan, enlists the siblings' help in running The Mystery Shack, a tourist trap filled with fake exhibits that overcharges unsuspecting customers.It would be another six-thousand years before the Imperium had any further contact with the Tau, when an unknown class of alien vessel was encountered by system defense ships at Devlan in the Ultima Segmentum.After failing to respond to naval challenges, the ship was opened fire on and destroyed.The Tau are a young race of technologically-oriented beings from the Eastern Fringe and the dominant species of the Tau Empire. M35 by the Adeptus Mechanicus Explorator Fleet ship Land's Vision.Adeptus Mechanicus records indicate that at that time, the Tau species had mastered the use of simple tools and weapons, as well as fire.