Hulk of a Different Color - S2-E1
Continuity mistake: When the gray Hulk finds the Rick Jones-Hulk hybrid wandering the desert, the latter does not have any earrings. After Rick Jones is restored to normal later in the episode, he suddenly has an earring in his right ear.
Hulk of a Different Color - S2-E1
Continuity mistake: When the Leader has siphoned the gamma mutation from out of the Rick Jones-Hulk hybrid, he reverts back to his human Rick Jones form. A few moments later, we see in a wide shot that Rick's skin is green again.
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 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)
Hulk of a Different Color - S2-E1
Other mistake: When Betty is watching surveillance footage of her father attacking the gray Hulk, the footage is same clips from earlier in the episode, camera angles, shot changes and all. Not to mention it's extremely unlikely she would happen to have surveillance cameras in the exact random area of the desert where the attack happened.
Hulk of a Different Color - S2-E1
Character mistake: When She-Hulk is objecting to the prosecution using live footage of the Rick Jones-Hulk hybrid to prove that Bruce Banner is not the Hulk, the judge overrules her without letting her state the legal grounds to her objection.
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
Audio problem: When General Ross pulls up to the gray Hulk, he says "This your idea of a joke?" with clenched teeth.
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.