Continuity mistake: When Spike is shooting the balloons, a green balloon changes to red when it deflates.
Continuity mistake: When Donald tears the brim off his army hat with the bayonet of his rifle, the size of the torn off brim goes from small to large between shots.
Continuity mistake: When Tweety hits Sylvester on the paw with a mallet, the background behind Sylvester changes between shots.
Continuity mistake: When the millionaire is addressing Spike and Droopy at the beginning of the cartoon, you can see his briefcase is at the right hand corner of the table. In the next shot, the briefcase is now in front of the millionaire.
Other mistake: Philip De Guard is the cartoon's layout artist, yet when we see his name in the opening credits, it is spelled "Phillip" instead of the usual "Philip."
Continuity mistake: When Bugs hides in the hole from Elmer, he puts the cow skull over the hole. Elmer then takes away the skull and then puts his head in the hole. At this point, you can see that the background is a desert, but when Elmer takes his head out of the hole, it has changed to a cliff. The background goes back to a desert when Bugs appears in the next shot.
Continuity mistake: Before Elmer runs off to fetch his gun, you can see there is a carrot near his feet on the ground. But when he returns, the carrot has gone.
Continuity mistake: When Bugs dons his top hat and tails and tells the penguin, "I've always wanted a nice long formal vacation", he takes the penguin by his left hand. When the two are walking along in the next shot, Bugs is now holding the penguin in his right hand.
Continuity mistake: When Jerry is removing the nail from Spike's foot with a hammer, the distance of the wall behind Spike changes between shots.
Continuity mistake: Before going to bed, Scrooge takes off his slippers and puts them by the side of his bed. But when he is disturbed by the singers, the slippers and the pillows he is resting his head on have disappeared.
Continuity mistake: When Bugs Bunny says "Watch your blood pressure, chubby!" to Göring, the medals on Göring's lederhosen change between shots.
Continuity mistake: When Goofy searches through the dresser drawers one of the ghosts causes trouble, then Goofy breaks through the top of the dresser and winds up trapped inside, but when all four ghosts appear the dresser top is perfectly fine and that damage has vanished. Also, two of the drawers (one large and one small) fall out of the dresser, but as the four ghosts are pushing the dresser those two drawers have reappeared in their proper places.
Other mistake: In the opening credits, Lloyd Vaughan's surname is misspelt as "Vaughn."
Continuity mistake: When Sylvester Junior is turning the wheel to pump oxygen into his father's diving suit, he spots a worm and starts following it, walking away from the pump. But when Sylvester bangs on the tank glass telling him to start pumping, we cut back to Sylvester Junior and he is back near the pump again.
Continuity mistake: When Jerry replaces two keys on the piano with a mousetrap, Tom gets his finger caught and there is a catch lever at the bottom of the trap. But in the next shot when Tom pulls up the mousetrap and his finger expands, the catch lever has disappeared.
Continuity mistake: When the form falls onto the girl's face, the position of the form changes between shots. (00:00:35)
Continuity mistake: When Daffy is playing "I'm A Cowboy" with Porky, he falls off Porky with his cowboy hat on, but when Daffy crashes into the safe, his hat has disappeared.
Continuity mistake: When we first see the "No Wolves Allowed" sign at the House of Bricks, "No Wolves" is on top and "Allowed" is at the bottom. When The Big Bad Wolf is looking at the sign, the words "No Wolves Allowed" are now on top of each other.
Continuity mistake: When the lady is putting her clothes on the clothes line, she is about to put up a sheet and you can see there are three items of clothing next to it. But when she is putting up the sheet in the next shot, there is now only one item of clothing.
Continuity mistake: Throughout the cartoon, watch the handkerchief in the store manager's top pocket of his jacket. In some shots it is in the pocket; others it isn't.