Continuity mistake: When She-Hulk's high school classmates are shown in the car, the woman in the back waving the pom-poms is wearing a blue outfit. When the shot changes, her outfit is now purple.
Continuity mistake: When She-Hulk's high school classmates are waving goodbye to her, you can see the woman in the front passenger seat is sitting down. When the shot changes, she is suddenly slightly standing up.
Audio problem: When She-Hulk says "Hey, Hulkster, having any fun?" and Hulk responds with "A blast, yeah," he is speaking in Abomination's voice.
Continuity mistake: When Ogress is attacking Jennifer inside the dance club, the hair on her head and arms is black when it should be dark brown. (00:18:40)
Continuity mistake: When She-Hulk is calling Gargoyle a vertically-challenged tree stump, her dress is colored pink, when it should be black. (00:11:15 - 00:14:45)
Continuity mistake: When Ogress has She-Hulk in a bear hug while Gargoyle is saying he can restore her to her luster, the hair on Ogress' arms is the same color as her skin, when it should be a dark brown.
Deliberate mistake: When She-Hulk walks up to the bar, she asks the bartender for a cream soda with a mint twist, which the bartender gives her immediately, with no time to pour the drink.
Continuity mistake: When Hulk reverts back to Bruce Banner in the treehouse, Banner's hair is longer than it was at the beginning of the episode. (00:00:33 - 00:09:40)
Continuity mistake: When She-Hulk is visiting Bruce in the treehouse, the holes in the floor caused by the Hulk's feet are no longer there. (00:08:49 - 00:09:53)
Continuity mistake: When She-Hulk is telling her parents that Bruce will help her, we see the Hulk sitting in the treehouse with his left leg sticking through the floor, and his left arm near the doorway. When the shot changes to inside the treehouse, his left leg is perched on the floor, and he is several feet away from the doorway. (00:08:49)
Character mistake: When the woman is looking at the high school photo of She-Hulk at the high school reunion, she says "Oh, look. Remember her? Jennifer something or other." You can see that her full name is written directly underneath the photo, so there's no reason why the woman would look at the photo and not know what Jennifer's last name is.
Continuity mistake: When She-Hulk's parents come to console her, they are standing to her right, with her father standing to the mother's right. When the shot changes, they are both standing directly in front of her, and her father is on now on her mother's left. (00:08:35)
Factual error: She-Hulk's license plate reads "GAMMA-GRL." She's from Washington DC and now resides in New Mexico. Both places have a limit of seven characters on a license plate. It can't be a vanity plate either, because both places also require front and rear plates.
Continuity mistake: When Gargoyle is looking at She-Hulk's car through a pair of binoculars, he is looking at it from a slightly perpendicular angle. When the shot changes, he is suddenly looking directly at her rear license plate, which would not only be impossible from the angle where he was standing, but even if he did move, the car parked directly behind hers would not allow him to see her license plate from a straight angle. (00:07:46)
Other mistake: When She-Hulk is looking at her eyes in the mirror and raises her left hand to her face, only the hand in the reflection is raised. Her actual left hand doesn't raise.
Other mistake: When She-Hulk walks into her parents' house, they are shocked to discover her appearance. She-Hulk's identity as Jennifer Walters is public, as she is still a trial lawyer, and the previous episode showed that she has celebrity status. We know she and her parents aren't estranged, because moments before she tells the Hulk that they know about him, which she could only know if she kept in contact with them, so there's no conceivable way they could have been unaware of her transformation as well.
Continuity mistake: When She-Hulk first takes the invitation to her school reunion out of its envelope, the invitation is folded in half. When Gargoyle finds the invitation a few scenes letter, the crease is no longer there. (00:00:27 - 00:06:00)
Other mistake: When She-Hulk is climbing the tree to speak to the Hulk inside the treehouse, you can see the doorway to the treehouse is barely large enough for her to fit through, so there's no way the Hulk could have fit through without damaging it. (00:06:06)
Continuity mistake: When Hulk is sitting in the treehouse, the tattered gym shorts he was wearing while battling Abomination are now pristine. (00:04:32 - 00:06:19)
Audio problem: When Abomination is saying "I can still take him," his mouth is not moving.
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.