Continuity mistake: Enter The Cheatrix: After Bart and Lisa break into Frink's basement, they discover a Rift Portal. The first shot shows the "DO NOT USE" sign a foot above Bart and Lisa's height. But as Bart walks into the portal, the sign is suddenly located at the same height as Bart.
Continuity mistake: Around The World In 80 Bites: In the ending cutscene, the losing contestants have to clean up. There's hardly any mess when they start cleaning. But the place is suddenly filled with mess when Comic Book Guy says "Less references, more mopping" to Willie.
Continuity mistake: Bartman Begins: After Bart flies onto the seal forming the bridge, a cutscene is then shown of Homer and Bart standing next to a glass wall witnessing the bullies stealing the artifacts. When it returns to the game, Homer and Bart are back on the seal.
Continuity mistake: Big Super Happy Fun Fun Game: When Milhouse is about to give the key card to Homer and Lisa, he extends his arm to hand it to them and puts his arm in a bent position. In the next shot, his arm is fully extended, with no visible bend.
Continuity mistake: Lisa The Tree Hugger: Lisa takes the The Simpsons Game manual off Bart. After Bart says "Can we skip this level?", Lisa starts talking to Bart and the manual has disappeared. There was also nowhere for Lisa to put the manual.
