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October 31st

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"October 31st" is the fourteenth episode of Kim Possible, and the series' Halloween episode.


While attempting to take back the Centurion Project, which appeared to be a small metallic bracelet, from Dr. Drakken, Kim Possible manages to get it stuck around her wrist, not knowing what it does.

Later that same day, Monique told her that Josh Mankey would be at her Halloween party, and Kim felt compelled to lie to Ron Stoppable and her mother so she could sneak off to Monique's party. She told her mother she was going Trick or Treating with Ron, which they did traditionally when they were kids, but tells Ron she had to be with her mother at a hospital-organized haunted house. Wade helped her realize that every time she lied the Centurion Project grew on her body, covering more and more of it.

Drakken and Duff Killigan were both separately listening in to the conversation at different points of time, and they each heard one of the two lies Kim told her entourage. Thinking she told the truth, Drakken went to the hospital while Killegan headed for the neighborhood, each trying to get their hands on the Project.

At Monique's party, Kim spoke with Josh, who was dressed as a pirate. He was very intrigued by the fact that she was dressed as a princess and had a cybernetic hand, which, unknown to him, was actually the Centurion Project. As Kim continued to lie, still trying to impress him, it grew more and more, eventually covering her whole body.

Using this technology, she flew over to the hospital where the two villains were questioning her parents on her whereabouts with Ron as hostage. They fought, and she won.

Once coming clean about her lies with her parents and Ron, who already knew the truth from the villains, the cybernetic armor receded back to its original dormant bracelet form. Ron then proposed to Mankey they go Trick or Treating, which he accepted. Josh was even agreeable with Ron's two-person unicorn costume, of which Ron was the back-end. Kim, who had been expressing Trick or Treating as lame, regreted her decisions as her crush left with Ron, while she was grounded.



  • This is the 14th episode in chronological order.
  • This is one of the few episodes in the series where Kim is actually grounded.
  • In production order, this is the last episode of season 1.


  • As Kim answers her phone to talk to Monique, the Centurion Project is no longer on her left arm.
  • When the Centurion Project activated in full, it tore apart the princess costume Kim was wearing for Monique's party, but somehow the Kimmunicator was trapped within the armor. When the armor was deactivated, Kim was back to her normal clothes. *So either this is a minor consistency error, or Kim had her normal clothes on under both the princess costume and the battle armor, or the Kimmunicator was inexplicably tucked into her undergarments.
  • As the Centurion Project deploys and covers Kim's head, it covers her tiara. However, when the Project retreats back into the bracelet, she is no longer wearing the tiara.
  • When Kim answers the door, her green shirt should be in Ron's sightline. Yet he does not react at all to the battle armor growing over it, or the fact that her shirt is suddenly metallic silver.
  • When Kim finally gets to the party, both her arms are armored. But this occurs before the right one is covered.
  • At the end of the episode, both of Shego's gloves are green, rather than one being green, and the other black.
  • While kicking Duff Killigan then throwing Shego at Killigan, the Centurion Project on Kim's right wrist is missing.
  • When Drakken tries to take the Centurion Project off Kim's wrist, his dark circles around his eyes were not black like they normally were even when he closes them.


  • The site where Drakken and Shego deal with Duff Killigan to acquire the Centurion Project is the same location as Kim met with "Big Daddy" Brotherson in "Number One".

Video releases

  • Kim Possible: The Complete First Season

v - e - d
Kim Poss

Kim Possible | Kim Possible: What's the Switch? | Kim Possible: Kimmunicator | Kim Possible: Revenge of Monkey Fist | Kim Possible 2: Drakken's Demise | Kim Possible 3: Team Possible | Kim Possible: Global Gemini | Lilo and Stitch: The Series | Phineas and Ferb | Kim Possible World Showcase Adventure


Bueno Nacho | Showdown at Camp Wannaweep | The New Ron | Downhill | Killigan's Island | Monkey Buisness | Attack of the Killer Bebes | Royal Pain | Tweeb Trouble | Extreme | Grudge Match | Cloned | Code Word: Kim | The Kim Possible Files | Save the World Kit | Pick a Villain!: Badical Battles | Pick a Villain!: Game On! | Pick a Villain!: Masters of Mayhem | Pick a Villain!: So Not the Drama!

Disney Parks

Kim Possible World Showcase Adventure


Heroes: Kim Possible | Ron Stoppable | Rufus | Wade | Dr. Ann Possible | Dr. James Possible | Jim and Tim Possible | Mr. Stoppable | Mrs. Stoppable | Hana Stoppable | Monique | Steve Barkin | Bonnie Rockwaller | Ned | Nana Possible | Team Go | Martin Smarty | Artie Smarty | Team Impossible | Betty Director | Cousin Larry | Vivian Francis Porter | Felix Renton | Zita Flores | Master Sensei | Yori | Slim Possible | Joss Possible | Yono | Mego | Hego | Wego Twins | Steel Toe | Pain King | Professor Acari | Connie Rockwaller | Lonnie Rockwaller | Mrs. Rockwaller | Tara | Jessica | Hope | Marcella | Liz | Crystal | Franklin Barkin | Wayne | Shaun | Reuben Stoppable | Vinnie | Big Mike | Mr. McHenry | Junior | Prince Wally | Wanda Wong | Toshimiru | Alan Platt | Akute | Officer Hobble | Amelia | Pop Pop Porter | Kyoko Yoshiko | Nakasumi-San | Timothy North | SADI | Middleton High School Cheerleaders | Will Du | Cyrus Bortel | Oh Boyz | Roachie
Villians: Dr. Drakken | Shego | Monkey Fist | Duff Killigan | Señor Senior, Senior | Señor Senior, Junior | Amy Hall | Gil Moss | Camille Leon | Frugal Lucre | Bebe | Adrena Lynn | Gemini | Professor Dementor | Fashionistas | Warmonga | Warhok | Edward Lipsky | Falsetto Jones | Nanny Maim | Hank Perkins | Stone Gorilla | Jackie the Jackal | Aviarius | Fukushima | Knights of Rodegan | Malcolm Nevious | Electronique


Season One: Crush | Sink or Swim | The New Ron | Tick-Tick-Tick | Downhill | Bueno Nacho | Number One | Mind Games | Attack of the Killer Bebes | Royal Pain | Coach Possible | Pain King vs. Cleopatra | Monkey Fist Strikes | October 31st | All the News | Kimitation Nation | The Twin Factor | Animal Attraction | Monkey Ninjas in Space | Ron the Man | Low Budget
Season Two: Naked Genius | Grudge Match | Two to Tutor | The Ron Factor | Car Trouble | Rufus in Show | Adventures in Rufus-Sitting | Job Unfair | The Golden Years | Virtu-Ron | The Fearless Ferret | Exchange | Rufus vs. Commodore Puddles | Day of the Snowmen | A Sitch in Time | A Very Possible Christmas | Queen Bebe | Hidden Talent | Return to Camp Wannaweep | Go Team Go | The Full Monkey | Blush | Partners | Oh Boyz | Sick Day | The Truth Hurts | Mother's Day | Motor Ed | Ron Millionaire | Triple S | Rewriting History
Season Three: Steal Wheels | Emotion Sickness | Bonding | Bad Boy | Showdown at the Crooked D | Dimension Twist | So the Drama | Overdue | Roachie | Rappin' Drakken | Team Impossible | Gorilla Fist | And the Mole Rat Will Be CGI
Season Four: Ill Suited | The Big Job | Trading Faces | The Cupid Effect | Car Alarm | Mad Dogs and Aliens | Grande Size Me | Clothes Minded | Big Bother | Fashion Victim | Odds Man In | Stop Team Go | Cap'n Drakken | Mathter and Fervent | The Mentor of Our Discontent | Oh No! Yono! | Clean Slate | Homecoming Upset | Chasing Rufus | Nursery Crimes | Larry's Birthday | Graduation


SADI | Neuro-Compliance Chip | Lotus Blade | Kimmunicator | Silver Cutlass | The Attitudinator | Amulet of the Monkey King | Molecular Muscle Enhancer | Naco | Diablo Sauce | Giant Laser Drill | Pop Pop's Mini Corn Dogs | Pop Pop's Blimp


Middleton | Middleton High School | Middleton Mall | Bueno Nacho | Smarty Mart | Possible House | Stoppable House | Club Banana | Middleton Space Center | Middleton Medical Center | Camp Wannaweep | Yamanouchi Ninja School | Forbidden City Museum | Pickle on a Pike | Middleton Institute of Science and Technology | Middleton Magnetic Institute | Middleton Geological Center | Middleton Motor Lodge | University of Upperton | Canada | Tokyo | Japan | Port Mystic Cove Haven


Call Me, Beep Me! | Could it Be | Rappin' Drakken | Naked Mole Rap | Say The Word | Pop Pop's Mini Corn Dogs (song) | It's Just You

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