At the Chubby Cheese pizza restaurant, Dexter wears a Chubby Cheese hat and tries to slow down the Whack The Weasel machine to win a stuffed Monkey doll before Dee Dee does.

Dee Dee's imaginary friend comes to life and annoys Dexter. Dexter ends up wishing him away, then he realizes he made a terrible mistake.

Dee Dee and Dexter win a free pass to Professor Hawk's magic factory after finding the golden diskette.

While the family is at the woods, Dexter goes searching for the Mighty Bigfoot, if Dee Dee doesn't find him first.

Dexter finds out he's ugly, so he transforms his face to look better for the school photo.

Dexter is send to detention after a confusion during a test.

Koosy tells Dee Dee that he is the king of the land of Koos, but when Dee Dee goes there...

After an I.Q. test defines Dexter as ""average"", he decides to live an average life hanging out with an average boy of last name Smith.

Dee Dee builds a treehouse in the garden and Dexter can't stop wondering what's up there.

Dexter and his friends Lucky and Pierre(¿?) are victims of a bully that hates kids with funny accents.

Dexter takes piano classes from a man that looks a lot like Paul Williams.

The story of how Dexter was born and how he built his lab, in the style of a musical.

When Dexter is attacked by Robots hunting "The one who saved the future", he becomes fascinated by the possibility of what he will be in several years time, taking the Time Machine. Dexter arrives in the future where he finds many things have changed...and that his greatest invention holds the key to total tranquility around the world, but in the hands of evil, also holds the key to total domination of the world

Two robots escape from Dexter's lab in order to have a better life.

Dexter and Koosy must save Peepers, otherwise the whole land of Koz will disappear.