Continuity mistake: When Daffy enters Bugs' living room wearing a rabbit costume, you can see the door is plain green. But when Elmer Fudd enters to confront Daffy, the door is now divided into three sections.
Continuity mistake: When Bugs reaches the top of the stairs in Bedlam Manor, Yosemite Sam (dressed in a suit of armour) tries to chop off Bugs' head with an axe, but Bugs ducks and Sam falls down the stairs. When we see Sam falling down the stairs in the next shot, Bugs has disappeared.
Continuity mistake: When Yosemite Sam sends out robot ZX29B to capture Bugs Bunny, the robot hides by some dustbins by the dump and you can see there are two dustbins by him. When Bugs empties his rubbish into the robot, the two dustbins have disappeared, and when robot ZX29B coughs up the rubbish in the next shot, they are back again.
Continuity mistake: At the beginning of the short, we see Dr Jekyll entering his laboratory and you can see the door is plain. But when Sylvester enters the lab with Tweety in his hand, the door now has a window.
Continuity mistake: When Bugs leaves his rabbit hole to join Wile E. Coyote at his picnic, you can see there is a jar of mustard near the end of the edge of the blanket. But when we see a full view of the blanket in the next shot, the jar has disappeared.