Deliberate mistake: Five Characters In Search Of An Author: Various times throughout this level, Matt Groening draws on some paper and some cartoons come to life. Whenever this happens, he only draws on one piece of paper, yet several pieces of are shown with cartoons on them.
Continuity mistake: Five Characters In Search Of An Author: When the Simpsons enter the gate to go to Matt Groening's mansion, the mansion is shown to be almost a few miles behind the gate. Later as the intro clip starts and Homer and Bart have reached the mansion, the key card gate is only a few yards in the background. Then as the level starts, there is now a gate to the mansion in the background and the gate that requires key cards is now way behind the gate to the mansion.
Continuity mistake: Five Characters In Search Of An Author: Whenever you approach the golden gate in the Game Engine game play, the four slots to place the key card in are the same colour. When the Simpsons and poorly rendered Simpsons approach the gate at the start of the level, the four key card slots all match each colour of the key card and not the gate itself.
Plot hole: Whilst you are in the Game Engine, Homer may say at one point, "Turtle bride, why didn't I think about that?" This is a clear reference to Professor Frink's turtle bride we met earlier in Enter The Cheatrix. The main problem with this quote is that Homer didn't even know about Professor Frink's turtle bride. It was only Bart and Lisa who even knew about the turtle bride as they rescued Frink and only them who rescued Frink in Enter The Cheatrix and met the turtle bride soon after. And although, Frink was in that large box in the theatre, the only thing he ever did was to give Homer and Lisa a power upgrade. Plus, the turtle bride was never visible in the theatre and Bart and Lisa never mentioned this to him.
Continuity mistake: Medal of Homer: When Homer, Bart and Abe return to the village after stopping Burns, they exit the van with the door left open. Very next shot, the door is closed.
Continuity mistake: Medal of Homer: When Homer, Bart, Abe and Burns discuss the plan, they are all standing next to each other. Burns suggests that he and Abe get the paintings, and we can see the other three aren't visible around him at all anymore. Abe then replies and the other three still aren't visible at all. Then in the next shot, the four are suddenly all next to each other again.
Continuity mistake: Medal of Homer: At the start of the level, Homer and Bart have to run up to Uter. As soon as the cut scene starts, Homer and Bart are suddenly back to where they started.
Bug: Medal of Homer: After Homer runs out of the mill exit, the huge spinning wheel is shown. If Homer jumps onto it, you will end up stuck floating one metre above the spinning wheel in the air.
Continuity mistake: Medal of Homer: As soon as you will start to have to walk over to Uter. A cut scene plays where he throws a rock into one of the windows and the French citizens put up surrender flags in their windows. However, as you walk over to Uter before the cut scene, you can see the houses already have a flag in their window.
Continuity mistake: Grand Theft Scratchy: When the woman in blue is crushed by the huge heart, Marge, Lisa and Poochie go from standing a feet away from the corner of road to standing right on the street's corner.
Continuity mistake: Grand Theft Scratchy: When the ending clip starts, Marge's position on the tiles she is standing on differs between shots. The tiles change size too.
Audio problem: Grand Theft Scratchy: As Marge apologises to Poochie, she says "Sorry, Poochie. But even you aren't extreme enough to resist the power of a stay at home mom with too much time in her hands." Lisa then replies "Yeah!" If you look closely, you can see Lisa says "Yeah" before her lips even move.
Continuity mistake: Grand Theft Scratchy: A bag with the key card suddenly appears as the woman in blue is crushed by a heart.
Continuity mistake: Grand Theft Scratchy: Note the background behind Marge, Lisa and Poochie at the start of the ending cut scene. You'll see there are no cracks on the floor between the barriers and the concrete wall a few meters behind them. In the next shot, as Marge says "Sorry, Poochie" to Poochie, a crack on the ground has suddenly appeared between the barrier and the concrete wall.
Continuity mistake: Grand Theft Scratchy: Before the cat pimps begin to charge at Marge, Lisa and the mob, they get rid of the barriers in order to charge at them. Yet as soon as the cut scene begins, the barriers have reappeared.
Continuity mistake: Grand Theft Scratchy: The ending cut scene starts with a far away shot where Poochie's head is fully raised. As Marge says "Sorry, Poochie" in the next shot, his head is suddenly lowered.
Continuity mistake: Grand Theft Scratchy: Marge, Lisa and the mob need to destroy two vans, then rebuild two ice-cream trucks and rebuild a sweet store. Behind all of this is a barrier. As soon as the cut scene starts, Marge and Lisa (without the mob) are standing next to the sweet store walking by and notice Poochie and the barriers aren't there anymore. Then as the cut scene ends and it cuts back to gameplay, the mob has reappeared next to Marge and Lisa and the barriers behind the trucks are back. Although the barriers were never visible during the cut scene, the game play part of the level shown barriers completely covering anything behind the two trucks, so Marge and Lisa still wouldn't have been able to see Poochie.
Deliberate mistake: Grand Theft Scratchy: If Lisa strikes her lightning hand on a member of the mob, that mob member won't get injured at all.
Continuity mistake: Grand Theft Scratchy: When the mob knocks down the piece of highway, the cables that were holding it together suddenly vanish.
Continuity mistake: The Land of Chocolate: During the intro clip, Homer is sleeping with a Herschel's Smooches bag on his lap. During the ending clip later on, the Herschel's Smooches bag has vanished.
