
The Armor Wars: Part 2 - S2-E9
Continuity mistake: When Iron Man is uploading a virus to Justin Hammer's computer, the computer was not on the desk when Iron Man first entered Hammer's office. (00:18:41 - 00:19:25)

The Armor Wars: Part 2 - S2-E9
Continuity mistake: When Tony Stark is holding the plate of coffee cups, the white sling on his arm is the same blue color as his robe. (00:20:11)
The Armor Wars: Part 2 - S2-E9
Continuity mistake: When the Mandarin is in the jewelry store at the end, he is shown as having only retrieved six of his ten power rings, with the ring in the jewelry store to be his seventh. In addition to previous episodes showing him to having already retrieved all ten rings, when he walks out of the jewelry store and places the ring he just stole on his left hand middle finger, you can see that he now has nine rings, with the thumb of his right hand being the only digit not adorned with a ring. (00:20:59)

Hulk Buster - S2-E11
Continuity mistake: After Julia is vanished by the light beam, her binoculars land next to a rock. A couple of shots later, the rock has disappeared. (00:02:00)
Hulk Buster - S2-E11
Continuity mistake: When both of the Mandarin's rings are shown early in this episode, they each have a light-blue gem. When Leader drops the case they are in later in the episode, one of them now has a red gem. (00:03:04 - 00:07:30)

Hulk Buster - S2-E11
Continuity mistake: When the Leader is talking about obtaining Mandarin's powers, the camera is focused on the ring on his finger, with Leader's face reflected in it. It then match-cuts to an outstretched finger adorned with a ring and Bruce Banner's face reflected in it. When the shot changes, Banner is holding the ring between his thumb and index finger. (00:03:24)
Hulk Buster - S2-E11
Continuity mistake: When Bruce Banner is observing the ring, its gem is the same gold color as the rest of the ring, when previous and subsequent shots show the gem to be light-blue. (00:03:32)

Hulk Buster - S2-E11
Continuity mistake: When Iron Man, Bruce Banner and Rhodey are all in the helicopter, Banner is sitting directly behind Iron Man. A couple of shots later, Banner is sitting directly behind Rhodey. (00:04:38)

Hulk Buster - S2-E11
Continuity mistake: When Leader is attacking the helicopter, it causes Bruce Banner to fully transform into the Hulk. When Hulk is jumping out of the helicopter, he is shown to have Banner's head, which again transforms into the Hulk's head as he freefalls. (00:06:30)

Hulk Buster - S2-E11
Continuity mistake: When the Leader comes to, he looks over at the broken case that contained two of the Mandarin's rings, and sees only one, which Hulk picks up and then inadvertently teleports himself and Iron Man to another time with. When Rhodey tells Leader to bring them back, he says he can't do so without the other ring, only for Rhodey to bend down and pick up the second ring from the same spot the first ring was, even though it was shown to be missing moments earlier. (00:07:39 - 00:08:33)

Hulk Buster - S2-E11
Continuity mistake: When Rhodey picks up the ring, he does so with his left hand while holding a rifle in his other hand. When the shot changes, the ring and rifle have swapped hands. (00:08:25)

Hulk Buster - S2-E11
Continuity mistake: When Iron Man is explaining to Hulk that he needs the ring to save Julia, the hair on the side of Hulk's head is the same green color as his skin. (00:10:58)

Hulk Buster - S2-E11
Continuity mistake: When Leader is saying "Nonetheless, I have spared her valueless life," his right hand is raised with the middle and ring fingers touching. When the shot changes, the two fingers are suddenly separated. (00:13:26)

Hulk Buster - S2-E11
Continuity mistake: When Hulk rips off the left arm section of Iron Man's armor, the thumb moves to the opposite side of the hand in the same shot, effectively making it the right arm. (00:14:24)

Hulk Buster - S2-E11
Continuity mistake: When Hulk is saying "No save Banner," Iron Man is wearing the left arm section if his armor, even though Hulk tore it off moments earlier and was holding it. (00:15:48)

Hulk Buster - S2-E11
Continuity mistake: When Leader is saying "It is I who shall acquire the power of the Hulk," his mustache briefly disappears from his face. (00:18:13)

Hands of the Mandarin: Part 1 - S2-E12
Continuity mistake: When the councilman is ordering the guards to remove Mandarin from the room, there is a glass of water on the table in front of him that wasn't there in previous and subsequent shots. (00:01:00)

Hands of the Mandarin: Part 1 - S2-E12
Continuity mistake: When Rhodey is towing Hawkeye in his jet into Manhattan, Hawkeye has seven arrows in his quiver. A few shots later, there are only five. (00:06:48)
Answer: Gleaned from the Internet: Some critics criticized the premise of so many one-off battles that were introduced and concluded within one or two episodes. Others felt the first-season plot lines were overly simplistic and never progressed or developed through the season. Also, the rivalry between Iron Man and the Mandarin also failed to capture viewer's attention.
raywest ★