Audio problem: When Abomination is saying "I can still take him," his mouth is not moving.
Factual error: When Hulk throws Abomination over the post office, the United States flag has only ten stripes, five red and five white. The U.S. flag has 13 stripes, seven red and six white. (00:04:50)
Continuity mistake: When Bruce Banner is attacked by Abomination, he is wearing gym shorts that go roughly midway down his thighs. After he has transformed into the Hulk, the now tattered shorts go all the way down to his knees. Hulk is much larger than Banner, so if anything the shorts should look more like a tattered speedo on the Hulk. (00:00:34 - 00:05:38)
Continuity mistake: When She-Hulk slams the trash can over Gargoyle, he is by the driver-side door near the hood of the car, and the can is taller than the door. When the shot changes, he is suddenly by the opposite end of the door, near the rear wheel, and the can is drastically shorter. When She-Hulk drives away, he is suddenly further away from the car. (00:04:13)
Continuity mistake: When She-Hulk drops Gargoyle to the ground, he ends up next to her right leg, with his head near her knee. When the shot changes to Gargoyle getting back on his feet, her leg is nowhere to be seen. (00:03:50)
Continuity mistake: When Gargoyle is driving She-Hulk's car, one shot shows the top of his head to barely be taller than the steering wheel. When the shot changes, his head is as suddenly high as the rear view mirror. (00:03:21)
Audio problem: When Bruce Banner is saying "Why, did you have another weak spell?" his mouth movement is slightly out of sync with the dialogue.
Continuity mistake: When She-Hulk is reading the invitation to her high school reunion, she is holding the letter with both hands. When Bruce Banner walks into the lobby and asks her if his package has come in, she is suddenly holding the package he is asking about and is no longer holding the invitation. (00:00:25)
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.
Other mistake: When Betty is going over the plans to infiltrate Sea-Base, she mentions they have to go ten floors down. When we see the base, it is nowhere near tall enough to be ten floors.
Factual error: When Bruce is tying the rope through the handles of the magnetic devices to prevent falling onto the laser beams, he only loops the rope through the one on the left, he doesn't tie a knot. The moment he started hanging onto the rope, his weight should have pulled it through the handle.
Factual error: Dr. Doom traps Hulk on an asteroid and sends it hurtling towards the sun, which it reaches in a matter of minutes. The sun is around 93 million miles from the Earth. Even if the asteroid was traveling at one million mph, it would still take nearly 4 days to reach the sun, not merely a few minutes. The same mistake applies for Hulk returning to Earth within a few minutes.
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.