Continuity mistake: Kendra is dealt a Queen of clubs and a red seven of diamonds. When the four of clubs has been dealt, the other cards are now a black seven of diamonds and a Jack of hearts. (00:16:50 - 00:17:40)
Continuity mistake: When Peter launches himself off a firework into Cleveland's house he hits the top floor and completely misses the ground floor. Yet the entire house is damaged including the ground floor. (00:01:25)
Continuity mistake: The bag of money has two piles of bundles while it is on the couch. One of the bundles is on the second pile while all of the other bundles are on the first pile. In the next shot, two bundles are on the second pile. (00:19:55)
Continuity mistake: When Cleveland walks back into the house, his foot hits a dumbbell and throws his shoes to the left of screen. The shoes disappear when he accidentally knocks down the drums. (00:09:10)
Continuity mistake: When Cleveland begins to faint after losing the college fund, the Jack of Diamonds, the two of hearts and the ten of diamonds on the table disappear. (00:07:50)
Continuity mistake: When Cleveland sits down after betting the college fund, the drink next to him changes position between shots. (00:07:35)
Continuity mistake: When Cleveland says "They do say you're supposed to chase your bets", Slim Biggins on the Club Nugget casino card has his hands raised. In the next shot, his hands are by his side. (00:07:20)
Continuity mistake: An ace is thrown on a ten of diamonds. The position of the ace changes between shots. (00:04:55)
Continuity mistake: When Cleveland first sees Tim, Holt and Lester outside, they are standing side by side parallel to the porch. When Cleveland goes outside, they are standing perpendicular to the porch. They are standing side by side parallel again when they show him the suit. (00:03:05)
Continuity mistake: When Donna first shows Cleveland Roberta's college fund, her hand is covering the "Fund" part of the "College Fund" label. The next shot shows almost the entire label covered by her hand. (00:02:35)
Continuity mistake: Cleveland throws two cushions on the floor and tells Donna he has gambling fever. When he throws the cushions down and falls back, the first cushion has an extended part to Cleveland's right. In the shot after Cleveland falls onto the cushion, the extended part has moved to the top of the cushion. (00:01:10)
Continuity mistake: In the girl fight scene, Jane puts her foot on Donna's neck. In the next shot, the angle of the foot changes. (00:18:40)
Continuity mistake: The position/distance of Holt and Cleveland's beer bottles change at The Broken Stool. (00:03:10)
Continuity mistake: When Cleveland is vomiting at the table, some of the vomit goes over his food. That's the only vomit that goes on the table. In the next shot, the entire table is suddenly filled with vomit. (00:15:15)
Continuity mistake: When Auntie Mama arrives, her bag is a light blue color. 2 shots later, the bag is now a dark blue color. (00:05:00)
Continuity mistake: In the wide shot of the fight, Rallo is sitting on the couch. When Donna, Roberta and Rallo say "Auntie Mama", Rallo is suddenly standing next to Donna and Roberta. (00:05:00)
Continuity mistake: Cleveland smashes a bottle to defend himself with. In the wide shot, all of the smashed glass disappears off the ground. (00:04:55)
Continuity mistake: Cleveland drops a spoon Junior throws at him. It disappears a few seconds later. (00:04:55)
Continuity mistake: Cleveland takes the photo album off his dad and his dad gives him the dirty look. Cleveland drops the album but disappears in the wide shot of people fighting. (00:04:45)
Continuity mistake: Roberta goes to leave the house and she starts a tug of war with Donna. They are standing next to the door in this shot, but standing next to a table about 15 seconds after. (00:04:45)
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.