This is one of the few episodes in the series where Kim is actually grounded at the end of the episode.
When Dr. Drakken and Shego are eavesdropping in Kim and Wade's conversation, Drakken could hear everything. When Kim mentions to Wade that she is going to Monique's, Dr. Drakken's reaction is not shown nor does he visit Monique's place at all during the episode.
When Mrs. Possible was taking up tickets, there was some disruption. But a boy paid Mrs. Possible before the disruption, then after it, he paid again.
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.
During Ron's "I don't have anything to add...." speech in the cafe after confronting Shego, Drakken and Killigan, Kim's mouth is frozen in an "O" shape.
When Kim is upstairs talking to Wade about the Centurion Project, she's barefoot. When she answers Ron at the door, a second or two later, she has shoes on.
The first time Kim answers her bedroom phone, its side is briefly transparent.
Jim and Tim switch places after Mr. Dr. Possible's line: "The bracelet appears to be constructed of a super-strong alloy." Before that, Jim is on the right and Tim is on the left (Green shirt-left, Red shirt-right). After that, Tim is on the left and Jim is on the right (Red shirt-left, Green shirt-right).
When Kim flashes back to the first Halloween with Ron, she has freckles. Unless I'm wrong, freckles don't go away.
Why was Kim wearing cargo pants under a princess outfit? And why did the Centurion armor form over her top and pants, but under her dress (Disney S&P aside ;)?
Explanation: Kim was wearing the cargo pants and top when the armor started to deploy. Therefore it started to cover them, but not the princess dress because she put that on later.
Contrary to the series' established style, Kim's lower lip is momentarily filled in as she answers her cordless phone (and crushes it in the process).
Coloration Goof: The black that tops Shego's collar appears and disappears at random throughout the episode.
Mom raises her arms in a spooky gesture as she relates the tweeb's desire to "drench [Kim] in fake blood", then withdraws them, half-concerned ("At least, I hope it's fake blood..."). In a single frame, as the camera angle changes, her left arm's back in the air, completely motionless in the foreground.
The number of finger segments in the Centurian Project's gauntlets varies wildly from shot to shot.
Why would Kim allow Killigan to return to, and operate out of, his island lair?
Ron leaves the front half of his unicorn costume with Kim behind a door she presumably locks, yet has it handy to offer Josh at the episode's end.
Shego's gloves are already lit as she races toward Kim in the third act ("Oh, it stops here!"), yet when the camera cuts wider, she lights them again.
Coloration Goof: At the end of the episode, both of Shego's gloves are green, rather than one being green, and the other black.
Animation Goof: When Kim finally gets to the party, both her arms are armored. But this occurs before the right one is covered.
Animation Goof: When Kim answers the phone, the bracelet disappears.
Drakken was at his island lair, though in "Tick-Tick-Tick", Kim started a chain reaction that blew it up. Wasn't it totally destroyed?
It's been a while since the whole "Tick-Tick-Tick" incident, so maybe he had his men rebuild that particular lair.
(After Drakken, Shego and Killigan are arrested)
Dr. Drakken: I, for one, am extremely disappointed in Kim.
Shego: I know. Lying to her parents and her best friend.
Duff Killigan: Aye. She'll be working long and hard to regain my trust.
Kim: So, obviously mistakes were made. By me.
Ron: Kim, Duff Killagan captured me!
Kim: I know. I'm so sorry. I never imagined that my lies could put anybody in danger.
Ron: Forget danger, woman! It put me behind schedule in my trick or treating. I'm not getting that time back.
Kim: (hugs Ron) Sorry.
Mrs. Dr. Possible: Kimmie, you know how important honesty is to us.
Mr. Dr. Possible: And this isn't just about us. Innocent people could have been hurt with those villains carrying on here tonight!
Kim: I will never lie again. I promise.
Tim: And it was such a stupid thing to lie about.
Jim: Ron's your friend. He would have understood.
Tim: And like Mom and Dad wouldn't have you go to Monique's party.
Kim: Even the tweebs are busting me?
Mr. Dr. Possible: You know what we're gonna have to do now, Kimmie.
Kim: I sense the word "grounded" coming my way.
Mr. Dr. Possible: Do you also sense the word one month and starting right now?
Kim: A whole month?!
Josh: Too bad you grounded. I thought we could go back the party together.
Kim: I'd love to. Can't.
Ron: Psst! Manky! I'm sitting on a list of every insomniac in Middleton.
Josh: You're talking trick or treating?
Ron: (shows him the front part of the horse) But you gotta wear this.
Kim: So, maybe next year I can go with you guys? Guys?
(After Kim has defeated Duff Killigan and Shego)
Ron: While I must admit that your new acquired super powers are perhaps the coolest things I've ever seen in my life... (angry) I can't believe you lied to me! Well, it's truth time. (pause) If you weren't with your parents.
Kim: Ron, I am so sorry.
Mrs. Dr. Possible: And you weren't with Ron!
Mr. Dr. Possible: Where exactly were you?
Kim: I, uh,... I just had to go to Monique's party cos Josh was gonna be there so I lied to Ron, and mom heard me lied to Ron so I had to cover up the lie to mom, and... (the Centurion project returns to normal) Whoa! I'm regular me again!
Shego: Oh, regular you I can handle.
Dr. Drakken: Get the bracelet!
Duff Killigan: Good idea.
(they try to get it off Kim)
Dr. Drakken: I must have the Centurion project!
Mr. Dr. Possible: (angry) If you don't mind I'd like a word with my daughter.
Dr. Drakken: (scared) Oh, yes, sir. (he runs off)
Mr. Dr. Possible: Kimberley Ann Possible,... we need to talk.
(Outside the haunted house)
Dr. Drakken: (in a megaphone) I am an infamous villain bent on global conquest and I demand...
Duff Killigan: (also in a megaphone) Oh, stick a sock in it! It is I, Duff Killagan, the world's most dangerous golfer...
Dr. Drakken: (not in the megaphone) Do you mind? This is my crime scene.
Duff Killigan: Guess again, blue boy!
Shego: For the moment let's ignore those two and get back to business. You expect me to believe that Kim Possible, the Kim Possible, lied?
Ron: I worry about what happens next. Sure, it starts with a few lies.
Rufus: U-huh, u-huh
Ron: But soon, our little Kimmie sinks deeper and deeper. How low will she go? What kind of inhuman monster will she become?
Mr. Dr. Possible: Apparently, a cybertronic one.
(Kim arrives in the full Centurion armor)
Dr. Drakken: The Centurion project... it's amazing.
Duff Killigan: All that came out of that wee bracelet?
Kim: Step away from the happy Halloweeners and surrender now.
Shego: Killigan! Let's see how much punishment the Centurion project can take.
Duff Killigan: I'm with you, lassie! Fore!
(Duff Killigan shoots a golf ball, but Kim grabs it and it explodes harmlessly in her hand)
Kim: I don't know exactly how this armor works but I do know that it's tough. I can tell you it's controlled by my thoughts and emotions and, right now, I'm feeling pretty nasty!
Shego: So count to ten or something.
Kim: This armor is practically automatic. It knows I'm angry and it's fighting back. Shego, you gotta stop!
Shego: Oh, it stops here.
(Kim and Shego fight)
(Kim is in a bathroom at Monique's)
Kim: Get it together. This is way out of hand. Those lies were tiny. Teeny tiny. Yeah.
Monique: Kim, you okay?
Kim: There's absolutely nothing wrong.
(the Centurion project grows into its full form)
Monique: Good thing it's Halloween, 'cause that look is scary.
Kim: This is bad. I've gotta talk to Wade!
Monique: Where's your Kimmunicator?
Kim: Somewhere under all this.
Josh: So, uh, what are you again?
Kim: A stinking liar trapped in high-tech battle armor.
Josh: See, I wouldn't have guessed that.
(The Kimmunicator beeps)
Kim: It's Wade.
Monique: (on the phone) Wade, it's Monique. Kim can't answer her communicator right now but she really, really needs to talk to you. Here!
(Monique gives the phone to Kim)
Kim: Hi, Wade. Small problem with the Centurion project.
Wade: Yeah, well, there's a big problem at haunted house. It's on the news.
(Jim and Tim are dressed as zombies outside the "scare for care" haunted house)
Crowd: Oh, aren't they cute? Look at those darling costumes.
(Jim and Tim turn a handle, to release Mr. Cadaver on a screaming crowd)
Jim & Tim: Hoo-sha!
Dr. Drakken: They're good.
Shego: I've seen every Possible except Kim.
Dr. Drakken: This calls for the direct approach.
(Dr. Drakken jumps in front of Kim's parents)
Dr. Drakken: Hah!
Mrs. Dr. Possible: Dr. Drakken!
(Duff Killigan also appears)
Duff Killigan: Hah!
Mr. Dr. Possible: The bearded lady!
Duff Killigan: I'm no a lady! I'm Duff Killagan!
Dr. Drakken: Killagan, here?
Duff Killigan: I'm here to get the Centurion project back from Kim Possible.
Dr. Drakken: So am I.
Shego: Okay, boys, boys! Time out, please. So where is Kim Possible!?
Mr. Dr. Possible: I suggest you people take your evil elsewhere.
Mrs. Dr. Possible: Honey, we've got to warn Kim. She's out there with Ron and has no idea trouble's brewing.
Ron: (with handcuffs) She's not with me! I'm here! and captured! Wait a minute! Wait a minute! She told me she'd be here with you!
Mrs. Dr. Possible: That's not what she told us.
Mr. Dr. Possible: She distinctly said she'd be with you.
Mr. & Mrs. Dr. Possible: She lied?
Mr. Dr. Possible: Kimberley Ann Possible! Wherever you are, you are in big trouble!
(Ron is trick-and-treating)
Ron: Smell my feet! Give me something good to eat!
Man: Happy Halloween.
Kid: Mister, could you not do smell your feet? It's really lame.
Ron: Hey, unicorn came to play!
Kid: You're no unicorn, you're just a horse's...
Duff Killigan: I've come to claim what's mine!
Kid: (laughs) He's dressed like a girl.
Duff Killigan: I'm not!
Kid: You're wearing a skirt!
Duff Killigan: It's a kilt!
Ron: Poor Duff. Kids can be cruel.
Duff Killigan: Not as cruel as I can be, Mr. Stoppable. So tell me, where is the Centurion project?
Ron: That thing stuck on Kim's wrist?
Duff Killigan: She's still got it, then? Bonny good. Where is she?
Ron: Not with me.
Duff Killigan: She told her momma she was going with you.
Ron: Oh no, you got it all wrong. She's with her parents.
Duff Killigan: What?
Man: Oh, another trick or treater. Happy Halloween. Piece of advice. The girl costume works better without the beard.
Duff Killigan: (screams) I'm no' a girl!
(after the Centurion project grows further)
Kim: Must hide. Bathroom?
Monique: Uh-uh. Closet.
Kim: Bathroom would be better.
Monique: That away, par'ner.
(Kim arrives at Monique's Hallwoeen party)
Monique: Kim, you're just in time!
(Kim goes over to Josh)
Kim: Avast you scurvy knave!
Kim: That was pirate talk. 'Cause, you know, you're a pirate and I'm a total dork.
Josh: No, no I got it. I'm just playing you.
Kim: Good one.
Josh: What are you supposed to be anyway?
Kim: Er, the Princess...inator.
Josh: Oh, right on. I heard your folks are doing the Scare for Care Haunted House.
Kim: You know about that?
Josh: Yeah, I stop every year. Good cause, good time, you know. Yeah
Josh: Yeah. I'll probably drop by after our set. Wanna go?
Kim: Yes! But I can't. I told them I, uh...
Josh: Told them what?
Kim: Doesn't matter.
(the Centurion project grows further)
Kim: State-of-the-art costume, huh? Be right back.
(Dr. Drakken appears around a corner at the "Scare for Care" haunted house)
Dr. Drakken: Alright. Try to blend in.
Shego: No problem.
(Shego puts on a c bandit's mask)
Dr. Drakken: You're just trying to annoy me now aren't you?
(Outside the Middleton hospital)
Mrs. Dr. Possible: Thank you. Enjoy. Thank you. Enjoy... Thank you. Enjoy... Thank you. Enjoy...
Mr. Dr. Possible: Do you dare face the Scare for Care House of Horror? (everyone cheers) Then enter at your own risk.
Mrs. Dr. Possible: Thank you. Enjoy. Thank you. Enjoy...
(Ron knocks on Kim's door)
Ron: Kim! You still home?
Kim: Oh, it's Ron. (opens the door) Hey.
Ron: I just saw your parents leave. You're not going with them? You're going with me?
Kim: Erm, yeah. I mean, no. I, uh, I'm meeting then later, actually. (the Centurion project grows further) I, uh,... I gotta go.
Ron: Here's you half of the costume I thought you should have it.
Kim: Oh, thanks.
Kim: Have fun.
Ron: We just...
Ron: Okay. Bye.
Kim: (to the costume, which is the front part of a unicorn) Stop staring at me like that. I feel bad enough as it is.
(the phone rings, and Kim grabs it, but destroys it because of the Centurion project)
Kim: Uh, whoops. Hello?
Monique: Kim? Josh is here! Hurry!
Kim: I'm on my way.
(Kim notices the Centurion project has grown)
Kim: Oh, my gosh! (takes the Kimmunicator) Wade, what is this thing?
Wade: Cutting edge nano technology. The cybertronic circuitry is controlled by some biometric parameters. (he gets a call) Better get this. May be it's the top-secret lab.
Alien: Greetings hacker man. I come from a distant star cluster seeking chocolate.
Wade: Hey, Eugene.
Eugene: How did you know it was me?
Wade: Cross-reffed your ISP address. I put the candy credits in your mailbox.
Eugene: Thanks, Wade. Go in peace.
Kim: O-kay. Back to me. Wade, I've got to get thing off before I go to Monique's party.
Wade: You're not trick or treating with Ron this year?
Mrs. Dr. Possible: Kimmie, we're going.
Mr. Dr. Possible: Have fun with Ronald.
Kim: Oh I will. (the Centurion project grows further) Wade!
Wade: You just lied to your parents.
Kim: I know. They think I'm going with Ron. He thinks I'm going with them. But I'm really going to Monique's. It's all very bad. I feel awful, okay?
Wade: No, Kim. That's what triggered it! When you lied, it grew.
Wade: It looks like some kind of armor.
Kim: Armor that grows by itself?
Wade: Yeah. The biometric parameters must have to do with stress. In battle, when a soldier is in danger stressed out, the armor would kick in.
Kim: Wade, I wore this thing during the fight with Shego, Drakken and Duff Killagan and nothing happened.
Wade: You must be more stressed out when you're lying than when you're fighting. Way to go, Pinocchio.
(Kim is talking on the phone)
Kim: So, Josh is seriously gonna be at your party?
Monique: Would I lie to you?
(the phone rings)
Ron: Kim, we're gonna fall seriously behind schedule here. Where are you?
Kim: Hold on. (to Monique) You're sure that Josh will show?
Monique: Yeah. Deal with it.
Kim: I am. (to Ron) Erm... Er, bad news, Ron. My mom is making me help with the hospital's haunted house thing tonight.
Dr. Drakken: Aha, we strike tonight, at the hospital's haunted house.
Kim: Yeah, I, erm,... I can't get out of it. It's a family deal. You know how it is, right?
(the bracelet grows)
Ron: (breaking) Oh, sure, KP. Yeah. I just can't believe it. A Halloween without us as a team. It feels weird, huh?
Kim: Yeah. Yeah, it, it does feel weird.
Ron: (almost cries) Try to have fun, anyway.
Kim: Okay. Bye.
Mrs. Dr. Possible: Kimmie, did I hear you tell Ron you're coming with us? The boys are so excited to dying to drench you fake blood. (pause) At least I hope it's fake.
Kim: No! I can't!
Mrs. Dr. Possible: Oh, I'm sorry, I thought I heard you tell Ron...
Kim: That I could not go with you because I, uh,... I promised to go with him. That's what I said.
(the bracelet grows and turns into a glove)
Mrs. Dr. Possible: I must have misunderstood. Well, have fun trick or treating.
Duff Killigan: Trick or treating, isn't the lass a wee bit old for that.
Monique: Why didn't you tell your mom?
Kim: I don't know. I just panicked. Look, I'll see you tonight, OK?
Monique: Okay, I guess.
(Duff Killigan and Dr. Drakken are spying on Kim Possible, but their radios fail)
Dr. Drakken: Stupid thing! Never works when I'm roaming.
Duff Killigan: Ah! Foul machine! Never works when I'm roaming!
(Drakken is outside, eavesdropping on Kim and Wade's conservation)
Kim: Have you got an update on this bracelet?
Wade: The update is... no update. I left a message at the lab.
Shego: We know that already.
Dr. Drakken: Shh!
Kim: Okay. I've got Monique on the phone. Page me if anything develops.
(Kim is talking in the phone)
Monique: Guess whose garage band is playing at my party.
Kim: If you say Josh Mankey I swear I'll scream.
Monique: Scream, girl!
(the Kimmunicator rings)
Kim: Hold on. (she takes the Kimmunicator) Wade? (notices he has a Halloween costume) Cool custome. (pause) Wait a second! You're gonna leave your room?
Wade: No way. I do it all online.
Mrs. Dr. Possible: The boys are helping with the "scare for care", haunted house at the hospital.
Kim: Wait, you two aren't trick or treating this year?
Tim: We're so over candy begging.
Jim: We're ten!
Mr. Dr. Possible: (looking at the Centurion project through a microscope) Fascinating.
Kim: "You-can-get-it-off" fascinating or "I'm-stuck-till-Monday" fascinating?
Mr. Dr. Possible: You're stuck till Monday.
Jim: Bet mom could get it off.
Mr. Dr. Possible: No dice, Jim. The bracelet appears to be constructed of a super-strong alloy.
Tim: Who's talking about the bracelet?
Jim: Yeah, Mom's a doctor. She could take off the hand and sew it right back on again.
Mr. Dr. Possible: Jim, Tim, there will be no surgery at the dinner table.
Mrs. Dr. Possible: (carries a corpse-looking doll) Look what I've got, boys.
Jim & Tim: Cool!
Mrs. Dr. Possible: It's Mr. Cadaver. The med student practices on him. Lifelike latex.
Tim: You're the best, Mom! (they take it and run off)
Dr. Drakken: Shego!
Shego: Indoor voice, please.
Dr. Drakken: What did you find out?
(Shego plays a tape of the message Wade has left for the Centrurion project scientists)
Wade: Hey, this is Wade. We've got kinda of a problem. The Centurion project is stuck on Kim's wrist. I know you're closed for the weekends, but if anybody checks messages, please help us out on this.
Dr. Drakken: Our poor little Kimmie. Perhaps we can help!
(At Dr. Drakken's hideout)
Dr. Drakken: (in the phone) For the last time, I will not pay you!
Duff Killigan: (screaming) I want my money!
Dr. Drakken: Look, I said I will pay you when the stolen Centurion project is in my possession. It is not in my possession. Therefore, I'm not paying.
Duff Killigan: Y-Y-Your're a criminal!
Dr. Drakken: My dear fellow, I repeatedly try to take over the world. (shouts) Of course I'm criminal!
Duff Killigan: Well, I'll tell you this much, laddie. The next time I steal it, I'm selling it to someone else! (hangs up)
Dr. Drakken: The nerve of that man!
(Outside Bueno Nacho, after Monique has invited Kim to her Halloween party)
Ron: Monique, get real. We're talking Halloween!
Kim: He loves Halloween.
Ron: I live for Halloween!
Monique: Then, what better way to celebrate than at my party?
Ron: A party would interferes with the "T or T action".
Kim: Trick or treat.
Monique: As in, "Smell my feet, give me something good to eat"?
Ron: You gotta do, "Smell my feet". (picks up Rufus from his pocket) Whoops! Wrong pocket! (he takes up a horse drawing) Okay. Here's what I'm thinking, KP! Joint costume, huh? Huh? You like it?
Monique: Girl, go with the half with the horn.
Kim: Um, Ron, do you think we're a little old for T or T? Last year some kid called me ma'am.
Ron: So, you command respect.
Kim: I was dressed as a clown.
Ron: I believe you were a hobo.
Monique: Okay, so, trick or treating is a Ron-Kim tradition. Come to my place after!
Ron: Monique, when Ron Stoppable and Kim Possible trick or treat, there is no "after"! We hit Middleton, Upperton and Lowerton. It's tradition! It dates back to the beginning of our friendship.
Kim: Since pre-school.
Ron: Ah, pre-school. The year of the ballerina and the cowboy.
(the phone rings in Kim's room)
Kim: (grabs the phone) Hello.
Monique: (happy) Kim, I have unbelievable news!
Kim: You know what the Centurion project is?
Monique: The what?
Kim: Never mind. So, what's up?
Monique: I got the party green light!
Kim: (cheers up) That is ferociously cool. When?
Monique: (screams) Tonight!
Kim: (surprised) As in Halloween?
Monique: It'll be a costume party. Everybody will be there.
Kim: (Kim sighs) Everybody except me.
Monique: But you gotta come!
(At Kim's house, which is Halloween-decorated)
Kim: (tries to pull the Centurion bracelet off) Come on. (the Kimmunicator beeps) Wade, tell me you talked to somebody at the top-secret lab.
Wade: Sorry. They're already closed for the weekend. You're stuck till Monday.
Kim: Did you at least find out what this thing is?
Wade: Their data bank on the Centurion project is hacker-proof.
Kim: Oh, man! Well, thanks for trying, Wade.
Dr. Drakken: Is it true, Duff Killagan, that you recently stole the top-secret Centurion project?
Duff Killigan: Mmm, maybe! (pause) Is it true, Dr. Drakken, you're looking to purchase the recently stolen top-secret Centurion project?
Dr. Drakken: Maybe.
Shego: (angry) Here's the money, now hand over the Centurion project!
Dr. Drakken: Shego, we were about to haggle!
Duff Killigan: And I do love to haggle.
Shego: Let's just get the Centurion project and get out of here.
Duff Killigan: (irritated) Oh, you're a harsh one, lassie.
(Killigan hands Drakken a bracelet)
Dr. Drakken: This trinket is the Centurion project?
Duff Killigan: Aye. Don't blame me if it's a wee thingy. Blame the scientist who built it.
Kim: And guess what? I think those scientists would like it back.
Dr. Drakken & Duff Killigan: Kim Possible!
Ron: Yeah, and... (pause) actually, you know what, I've got nothing to add to that.
Duff Killigan: You know her?
Dr. Drakken: Know her! Hate her! Shego, attack!
(Kim and Shego start to fight)
Ron: (to Rufus) I don't have anything to add here either.
(Rufus points over to Duff)
Ron: An exploding golf ball!
Duff Killigan: Fore! (he stirkes the ball)
(Ron throws a plate which blocks the golf ball, which makes the roof crack up)
Duff Killigan: The roof! She's coming down.
Dr. Drakken: That can't be good.
(Rufus takes the bracelet from him)
Dr. Drakken: Hairless vermin! Give that back!
(Rufus throws it onto Kim's arm)
Kim: Nice work, Rufus. (the bracelet locks to Kim's arm) Guess it's going with me. Bye!
(she runs out)
Animation Production by: Toon City Animation, Inc.
A.J. Trauth(the voice of Josh Mankey) also played Twitty in Even Stevens, who had a band as well. Also, Christy Carlson Romano, who voices Kim, used to play Ren Stevens on that show
For Your Eyes Only:
Near the end of the second act, Kim Possible literally loses the princess outfit as the Centurion Project armor overwhelms her. Interestingly enough, one shot is a poster pose of the famous James Bond movie "For Your Eyes Only".