Gumball inadvertently cracks open Penny's shell, and discovers who she really is inside...

When Gumball and Darwin investigate a missing classmate, they discover a far greater mystery... about Elmore.

The Wattersons become poor when Richard loses all their money.

When Miss Simian sees Gumball and Darwin joyful on Monday, she knows that something is wrong with them. She performs tests on them, but the nurse disapproves what she's doing. But suddenly, Gumball and Darwin start to infect the school with the 'Joy Virus', and it's up to Miss Simian and her tape player to cure the students.

Gumball and Darwin try to figure out the meaning of life after coming down from a sugar rush.

After discovering a prophetic painting depicting Gumball's naked run through the mall, he is determined to avoid that outcome.

Darwin becomes obsessed with safety after seeing a video in class.

Miss Simian threatens to expel the boys if they are late for school, so they race a clock in order to arrive on time.

The Wattersons have had a bad day, but it turns out Larry has too and it's about to get worse... for everyone!

While driving to a campground, Nicole tells a horror story, which slowly starts to come true as their car breaks down and a stranger comes to help them out.

Gumball and Darwin spend the day doing other things instead of taking out the trash like their mother told them to do before she got back home.

Gumball and Darwin's voices may be breaking, but they're showing no signs of growing up. Whilst Gumball and Darwin make fun of Mom and Dad for being old, their voices start to break. They try to ignore it, but everybody they meet reacts to their new and unpredictable voices.

The Watterson children's long-awaited pet puppy turns out to be a turtle which hates them.

It's Mother's Day and kids put their moms through a series of tests to determine who has the World's Greatest Mom.

Gumball and Darwin are shocked to discover that Anais is Dad's favorite child.

When Gumball's family tries to cheer him out of an inexplicable lousy mood, he wishes they would all disappear.

When Mom reveals that Gumball's real name is "Zach," Gumball adopts a cheesy, annoying persona to match the name. His family tries to make him remember the old Gumball, as this new Zach persona is progressively taking over Gumball's life and erasing his memories.

Gumball needs to find a cure for Darwin's allergy before he sneezes Elmore off the map.

Gumball refuses to forward an e-mail purportedly sent by a ghost, against Darwin's advice. When a curse begins to take effect and their family is dragged into another dimension, Gumball and Darwin seek Carrie's help to save them.

Noticing that everyone is in the doldrums of January, Gumball and Anais invent a new holiday to spark excitement.

After failing at making Alan lose his temper, Gumball and Darwin decide to adopt Alan's positive attitude.

When Gumball and Darwin have to wait to see a movie, they must go an entire week without someone spoiling the plot.

Gumball and Darwin discover the secret behind their classmate Anton's immortality.

Darwin becomes jealous of Gumball and Penny's new relationship and sets out to find information that will break them up.

Gumball and Darwin investigate the disappearance of the family's stuff only to find out some stranger is living in the house with them.