Plot hole: Cleveland never tells his friends where Cecilia lives. Yet Lester is somehow able to call Immigration & Customs Enforcement and direct them to Cecilia's house. (00:14:05 - 00:15:10)
There Goes El Neighborhood - S3-E9
Other mistake: Cleveland had a VIP Sky Box installed for the big game. Yet when Cleveland is actually watching the game not only is he not sitting in it, but there is no sign of it either. (00:00:45 - 00:03:35)
There Goes El Neighborhood - S3-E9
Continuity mistake: When Junior and Cecilia are talking in the cafeteria, a boy with a blue waistcoat can be seen in the shots of Cecilia. The boy is eating a sandwich, and has a cup on the tray in front of him. In the shots of both Junior and Cecilia, the boy has no tray in front of him and is holding a milk carton instead of a sandwich. (00:08:45)
Dancing with the Stools - S3-E10
Other mistake: Cleveland drops his yellow top hat when he hurts his leg. But keep an eye on the hat when it's on the floor. You'll see it is in an unrealistic position. (00:01:30)
Continuity mistake: Ernie's position keeps changing in relation to Junior at the first election. (00:04:50)
Continuity mistake: When Cleveland walks into the kitchen after being gone for two days, Robert's plate is full of breakfast. A couple of shots later, Robert's plate is nearly empty without enough time to eat the food on the plate. (00:06:40)
Continuity mistake: When Cleveland notices the family and neighbours are there for his intervention, we can see Arianna and Holt standing right next to each other. In the next shot, Arianna is in visible but there's no sign of Holt. He was too close to Arianna to be out of frame. (00:09:35)
Continuity mistake: When Cleveland sees everyone in his bedroom, Arianna's bracelet changes which arm it is on between shots. (00:09:35)
Continuity mistake: When Cleveland gets hit with the American football when he walks into Waterman Cable at the start, he is standing next to the entrance door. In the next shot, he is suddenly standing at least 20 feet away from the door. (00:02:00)
Other mistake: Terry and Aaron are seen behind Tori when Donna finds Cleveland having Frapps with Tori. But when the Frapp Attack video is played later, there's no sign of Terry or Aaron. (00:08:05 - 00:09:00)
Plot hole: Several angles of the Frapp Attack video would have been impossible for Rallo to shoot. The "ow, my bottom!" angles come from a wide shot, but Rallo was never standing in such a position when it actually happened. (00:08:05 - 00:09:05)
Continuity mistake: When Cleveland says "We were just at work and it was just so boring and humdrum...", Tori is looking at Cleveland and Donna. But when the video is played later, when Cleveland says "humdrum", Tori is looking away from Cleveland. (00:08:10 - 00:09:00)
Continuity mistake: When Donna "frapps" Cleveland, there is Frapp on the floor. Cleveland then slips on the Frapp and it disappears into the grass. Two seconds later, it reappears on the ground. (00:08:20)
Other mistake: In the scene when it shows how everyone got "Rallo'd", Donna is shown having been on the receiving end of the black eye binoculars trick. However, the pencil circle around her eye is is too big for the size of the binoculars' eye piece. (00:03:35)
Continuity mistake: At the start of the church ceremony, Junior and Roberta are present, so it must be a weekend because they would have to be at school on a weekday. Later that same day when Cleveland is washing a mule he says it's Wednesday when it should be a Saturday or Sunday. (00:10:50 - 00:12:20)
Continuity mistake: When Cleveland and Donna notice Rallo has disappeared out the window, the window changes size between shots. (00:14:20)
Continuity mistake: The tree the scuba diver is impaled on changes size between shots when everyone runs out of the courthouse. (00:14:40)
Continuity mistake: Junior's inflatable scout pants go over the waterfall twice when he saves Rallo. (00:19:35)
Continuity mistake: When Cleveland and Roberta are about to leave the house in the car, Rallo's car seat is seen in the back of the car. But by the time the car leaves the house, Rallo's car seat has disappeared. (00:08:20)
Continuity mistake: On the menu board, mac and cheese is spelled correctly, then a few seconds later it's not. (00:09:30)
Answer: In the episode "A Rodent Like This" Rallo discovers that Cleveland Jr. is actually a secret agent who is tracking down Tim, who is actually criminal. Jr. reveals that in order to get close he had to eliminate the real Cleveland Jr. luckily Cleveland doesn't pay attention so it was easy. Whether or not this is canon or not depends on the writers.