Continuity mistake: In "The Spoon", Darwin and Gumball use shopping carts to open the big safe. These carts eventually disappear on their own.
The Amazing World of Gumball (2011)
1 mistake in The Quest/The Spoon
Starring: Dan Russell, Kwesi Boakye, Logan Grove, Teresa Gallagher
[The kids are trying to get Granny Jojo out their bedroom window to have her reach the ground.]
Gumball: [grunting] How can someone so small be so heavy?
Granny Jojo: Well, I have two metal hips, one orthopedic shoe, six gold teeth, a plate in my head, and an industrial strength pacemaker. I got so much metal in me, I'm legally classified as a motor vehicle.