“He couldn't control the other guy — the story of a genius scientist learning to balance himself with the Hulk.”
Superhuman transformation from gamma radiation exposure. Strength increases with anger — with no known upper limit.
Most injuries heal instantly in Hulk form. He withstood activating Thanos' gauntlet — losing an arm but surviving.
Combines Bruce's intellect with the Hulk's body. In Endgame, he operated the Time Stone and triggered the reverse Snap.
The collision of an intellectual's need for control and an uncontrollable rage. Bruce's life was a constant battle against fear of his own other self. His core pattern is self-imposed isolation — punishing himself to prevent hurting others. His transformation into Smart Hulk is an enlightenment arc of integration, but the cost was permanent physical damage.