Monkey encounters an alien hunter named Huntor (Ed Gilbert) and must fight him to save Agent Honeydew and Commander Chief.

When Dexter is asked to bring his mother to school, he disguises Dee Dee as her so that she can take her place, but Dee Dee does not behave like their mother.

Dee Dee teaches Dexter how to live life her way instead of being lonely and purely focused on science.

Dexter is forced to play dodgeball by his P. E. teacher (Michael Pataki). Constantly failing, Dexter builds a robotic exoskeleton to defend himself.

Dexter and his friend Douglas Mordecai must enter the girls’ bathroom to retrieve Dexter’s lunchbox, which was put in there by another student.

Dexter creates a new type of ink that lets him command people to do whatever he wants. However, when Mandark gets his hands on it, Dexter is the one that becomes commanded.

To prevent himself from being taken away by aliens for experimentation, Dexter tricks Dee Dee into going instead, but he regrets his decision after realizing how much he cares for her.

When Dee Dee eats a contaminated apple, she turns into a monster every time when she tells Dexter what to do.

Dexter and Dee Dee experiment with coffee after seeing how it energizes their parents in the morning.

After working in his lab all night creating his latest invention, Dexter tries to sleep, but he is constantly interrupted by Dee Dee.

Dexter and Mandark bring the Abraham Lincoln and George Washington faces respectively on Mount Rushmore to life and make them fight each other to determine who is the best.

Dexter falls victim to one of his own inventions and sends Dee Dee back in time to warn his past self about the consequences, but the past Dexter proves hard to convince.

Dexter creates a device to make a lifelike superhero comic, with his sister villain “Deestructa”.

Dexter and Dee Dee compete against each other on a game show.

Not interested in hearing Dee Dee’s long-winded story, Dexter gives her a silencing formula to keep her quiet, but it instead turns her into a giant monster still bent on telling her story. When he realizes that nothing can make her quiet, he becomes a giant monster himself.

When his mother falls ill, Dexter creates a robot to do her chores. Dee Dee gets hold of its remote control and wreaks havoc, forcing Dexter to create a second robot to counter Dee Dee’s.

Dexter tries to improve his eyesight by giving himself laser eye surgery, but goes too far in doing so.

Intergalactic wrestling champion Rasslor (“Macho Man” Randy Savage) challenges Earth’s superheroes, including Monkey, with the planet’s fate at stake.

Dexter tries to make himself and Dee Dee older to see an R-rated movie, but he accidentally makes everybody else babies instead.

Dexter is upset that Dee Dee is more photogenic than him, so he transforms his face into a handsome one for his next Picture Day.

Quackor returns to battle Monkey in Dexter’s Lab until Quackor lays an egg; then the two fall in love.

Dee Dee and her friends, Lee Lee and Mee Mee, enter Dexter’s lab and wreak havoc. Dexter clones himself to stop them, but the girls too make clones of themselves.

To fix their apartment’s plumbing, Krunk and Valhallen go to the basement, where they meet Ratman (Maurice LaMarche), a diminutive vigilante raised by rats (a parody of Batman).

Mandark plans another scheme to get rid of Dexter. Everything in this cartoon is to the tune of Mandark’s trademark laugh.