- When Leela first enters Universe 1, the hangar walls are blue, much like the exterior of the building, but in subsequent shots, the walls appear red.
- When everybody returns to Universe A, they emerge in a different order than they went in.
- Leela 1's armband does not appear on her right arm in a scene: the first shot of when groups A and 1 are sitting around Farnsworth's round table.
- Leela is reading an article that says Bigfoot turns 80, but in Spanish Fry, he isn't that old.
- The boxes appear labelled on the shelf, but once they fall no one can tell which is which.