Hulk of a Different Color - S2-E1
Continuity mistake: When the gray Hulk picks Gargoyle up from out of his cockpit seat, he picks him up with his left hand, with his upper knuckles towards Gargoyle's body. When the shot changes to Gargoyle saying "Release me," Hulk is holding him with his right hand, and his thumb and fingers are pressed against Gargoyle's body. (00:12:28)
Hulk of a Different Color - S2-E1
Continuity mistake: When She-Hulk is holding the stenographer up in the air by her chair, she is holding the chair by its right-rear leg, while standing in front of the third juror from the left. When the shot changes to She-Hulk putting the stenographer down, she is suddenly holding the chair by its left-rear leg, and is now standing in front of the juror on the far right. (00:08:05)
Hulk of a Different Color - S2-E1
Continuity mistake: When General Ross is first seen in the hospital bed, his mustache is a darker shade of gray than usual. (00:06:45)
Hulk of a Different Color - S2-E1
Continuity mistake: When the gray Hulk is telling She-Hulk that he's taking over Banner, he's pointing his left-hand index finger in her face. When the shot changes, his left arm is suddenly down at his side and she has moved back a couple feet. (00:13:55)
Answer: The Hulk is a giant brute who smashes everything in his path when he is angry. In Ang Lee's "Hulk," General Ross, played by Sam Elliot, explains it to his daughter.