Continuity mistake: Enter the Cheatrix: When Bart and Lisa arrive in the Game Engine, their arms are extended. When Bart says "Wow", their arms are at their sides.
Continuity mistake: Around the World in 80 Bites: When Moe is congratulating Homer on winning the championship, the two are standing on the edge of a shadowed area. Homer is still next to the shadowed area when Duffman declares him champion, but when the shot cuts, the shadowed area is a few meters ahead of him.
Continuity mistake: Around the World in 80 Bites: When Duffman declares Homer the ultimate eating champion, the Duff cans around his belt all have red labels. When the shot cuts, the labels are now red at the top and bottom and white in the middle.
Continuity mistake: Mob Rules: Just after Quimby announces the Grand Theft Scratchy ban, Groundskeeper Willie and Lenny swap places between shots.
Continuity mistake: Game Over: In Bargain Bin, when the mothership fires on the Simpson house, it destroys the mailbox. When they return in Game Over, in the establishing shot of the house, the mailbox is suddenly back and intact.
Continuity mistake: Big Super Happy Fun Game: When Homer is handed the Sparklemon after he and Lisa defeat Ralph, his left arm is raised when he grabs onto it. In the next shot, his left arm is at his side and the Sparklemon has disappeared. The same mistake is also made when they defeat Sherri and Terri.
Continuity mistake: Five Characters In Search Of An Author: When Matt Groening stands up after being beaten by Homer and Bart, he starts thanking Marge. When he says this, he is standing at an angle perpendicular to Lisa. In the next shot, he and Lisa are standing directly in front of each other.
Continuity mistake: Medal of Homer: When Bart asks Homer if he can get some wine, Homer rejects his offer saying he's an American kid. When he says this, no-one else can be seen standing next to the truck behind them. Abe then suddenly appears in the next shot, saying "God bless America" while standing next to the truck.
Continuity mistake: Medal of Homer: When the Mayor hands Homer the painting, the two are standing right next to each other. A couple seconds later, the Mayor is meters away from Homer.
Continuity mistake: Medal of Homer: When the Mayor of the village shows Homer the painting, he has both hands placed on each side. The hand placed along the left side is near to the middle, whereas the hand placed along the right side is higher up. But in the next shot, both hands are level with each other.
Continuity mistake: Medal of Homer: When Abe tries to shoot at Private Burns on the boat, Burns leaps onto the ground for cover. He lands flat on the ground, but in the next shot, he is suddenly standing.
Continuity mistake: Grand Theft Scratchy: At the start of the opening cutscene, when Marge is commenting on the neighborhood, the shadows on the ground change between shots.
Continuity mistake: Grand Theft Scratchy: When Marge says "Look at this place. Graffito, bottle and bags", she is standing upright. In the next shot, she is suddenly hunched forward towards Lisa.
Continuity mistake: NeverQuest: When Homer climbs into Patty and Selma's ash tray, cigarette ash around the keycard suddenly appears when it cuts to the close-up shot.
Continuity mistake: Bargain Bin: When Homer and Bart get out of the elevator after arriving at the theatre, in the overview shot, two lights can be seen on top of the doors to each of the four levels. On the door to the NeverQuest level, the light placed on top of the left-hand side of the door is pointed to the left. In the next shot, the light is pointed directly forwards.
Continuity mistake: Bargain Bin: When Will Wright shows the Simpsons the 8-bit versions of themselves, Homer is shown smiling while saying "Wow" and all of them are shown looking directly at the 8-bit Simpsons. In the next shot, Homer is no longer smiling and they are now looking at Will Wright.
Continuity mistake: Bargain Bin: When Homer reappears on top of the platform after falling off it, he is standing ahead of the other Simpsons. When Will Wright appears in the next shot, Bart and Lisa are suddenly ahead of Homer.
Continuity mistake: Bargain Bin: When the family arrives in the Game Engine and Marge asks "Where are we", she is shown holding onto Maggie. Marge has both hands around Maggie's back and Maggie is hunched backwards. Two shots after when Lisa says "We're in the Game Engine", Maggie is suddenly held upright and Marge's hands have changed position.
Continuity mistake: Lisa the Tree Hugger: When the two loggers confront Bart and Lisa after they destroy the factory, one of the loggers is shown standing in front of the other. But in the final shot of them, the two are standing side by side.
Continuity mistake: Lisa the Tree Hugger: When Mr Burns is talking to Smithers about his evil plan, just as he finishes saying "and turn each tree into a single luxury toothpick", his forearm is raised above the desk. In the next shot, his elbow is suddenly rested on the armrest of the chair.
