Continuity mistake: Game Over: Whilst escaping the game engine, Bart points to the portal to Springfield. On the left hand side of the screen is a sign saying "Hot Off QA" on the light fixture for the Medal of Homer game. In the next shot, the A in the sign is suddenly tilted. The light fixture also receives further damage.
Other mistake: Big Super Happy Fun Fun Game: At the start of this level, Mr. Dirt (i.e. Milhouse) emerges from the ocean, but Mr. Dirt is approximately 30 feet tall and the water is far too shallow for him to have been hiding his entire body inside the water. The water only goes up to his knee area whilst he is standing in the ocean.
Continuity mistake: Bargain Bin: When the Simpsons arrive in the game engine, they are standing away from the edge and not on the yellow/black markings on the platform. A few seconds later, Homer walks off the edge of the platform, and suddenly, they are on the edge of the platform and on the markings.
Continuity mistake: Enter the Cheatrix: After Bart and Lisa have saved Professor Frink, Frink hands the strategy guide to Bart. Professor Frink activates the Rift Portal and Bart and Lisa walk over to it. At this moment, the strategy guide has vanished from Bart's hand. The guide reappears once Bart and Lisa have gotten in the Rift Portal.
Continuity mistake: Mob Rules: When Mayor Quimby and the games producer notice the mob of parents outside the building, Marge is standing near the front of the mob and a senator is standing next to her. When the shot cuts to focus on the senator, Marge is no longer standing next to the senator and has been replaced by Snake Jailbird.
Continuity mistake: Mob Rules: When Ned says Grand Theft Scratchy is going to turn kids into Stabby Sam's and Drive-by Denny's, Lisa is standing straight facing Ned and Marge is standing 90° to the right. The shot cuts and suddenly Lisa is standing 90° to the left facing Marge and Marge is standing straight forwards facing Ned.
Continuity mistake: Lisa the Tree Hugger: In the opening shot from the first cutscene in this level, there is dirt at the bottom of the door to the Auntie Nature logging company. The door is there throughout the opening cutscene, but there is no sign of the mud at the bottom of the door in any other shot.
Continuity mistake: Bartman Begins: When Bart is reading the manual, there is a 360 degree panning shot of him reading. When the shot is on the road behind him, there is a museum in the background and a sign saying "Springfield Museum of Natural History." A few seconds later, when Homer arrives, the sign in front of the museum is still there, but the name has vanished from the sign. When Homer and Bart climb into the sewer, the name has suddenly reappeared on the sign.
Continuity mistake: The Land of Chocolate: When Homer looks into the window of the Ye Olde Chocolate Shoppe and looks at the half price chocolate, he walks over to the window and stands in the centre of it, but in the next shot, he is suddenly standing at the corner of the window as the window frame is visible beside him.
Continuity mistake: Bargain Bin: When the mothership arrives at the Simpson house, the family runs outside, standing next to the door and leaving it open. Lisa then says "it's the mothership" and the family are now standing in the garden with the door closed.
Continuity mistake: Invasion of the Yokel Snatchers: When Homer and Bart release Cletus, Homer and Bart's position on the floor changes between shots.
Continuity mistake: Invasion of the Yokel Snatchers: Cletus confronts the aliens about their thieving. He is holding two coupons in his hand, which two shots afterward become three, then when one of the aliens takes them, there are suddenly six coupons in the alien's hand.
Continuity mistake: Enter the Cheatrix: When the ape snatches Professor Frink, Frink is holding the Simpsons game strategy guide with his left hand, but as the ape jumps into the pipe, the manual has vanished. He couldn't have dropped it as he gives it to Bart and Lisa later on.
Continuity mistake: Mob Rules: When the dolphins are charging towards the shore, the head dolphin, Snorky lays on a rock on land and turns to face the other dolphins, but from an overview angle, he is suddenly lying on the sand.
Continuity mistake: Mob Rules: When Kang and Kodos are arguing, the Earth shown through the monitor changes entirely when the shot cuts. Extra land and additional clouds have suddenly appeared. The shot shown on the monitor is also much further away when the shot cuts.
Continuity mistake: Mob Rules: When Mayor Quimby and the games producer first see the mob, there is a senator standing near the front. Grandpa Simpson is in the crowd behind the senator to her left. The shot cuts to a closer shot of the senator, and Grandpa Simpson is now directly behind her.
Revealing mistake: Mob Rules: When Mayor Quimby and the games producer are in the hot tub, the two of them are holding glasses filled with wine, but the wine always remains in fixed position, even if the glasses are being tilted to the side.
Continuity mistake: Mob Rules: When Ned has been carjacked, just as Marge and Lisa go over to him, there is a lamp post on the street corner, but as Marge asks Ned if he's hurt, the lamp post has vanished.
Continuity mistake: Mob Rules: After Ned has been carjacked, Marge and Lisa run out to help him. An Itchy and Scratchy billboard is on their right, but by the next shot, the Itchy and Scratchy billboard is behind them.
Continuity mistake: Mob Rules: When Martin Prince carjacks Ned, the shot of Ned being thrown out of the car shows the car having a shadow. The shot changes to an overview angle of Martin driving away, and the car's shadow has vanished.
