The Allergy - S3-E16
Continuity mistake: The school nurse drops a pencil right next to herself. The pencil disappears in two shots.
The Amazing World of Gumball (2011)
1 continuity mistake in The Allergy
Starring: Dan Russell, Kwesi Boakye, Logan Grove, Teresa Gallagher
The Microwave/The Meddler - S1-E17
Continuity mistake: In "The Meddler", Nicole is feeding Gumball food with a spoon and drops it on the table. The camera cuts to Darwin and then back, but the spoon is now gone.
Nicole Watterson: Well maybe it all comes back to the stupid name you gave me!
Gumball Watterson: Um, what's wrong with Nicole?
Nicole Watterson: Nicole is my middle name, my first name is DOCTOR!
Trivia: There is a three-eyed smiley face on Miss Simian's door, which is a reference to the 2001 film, "Evolution"