All the items in the scavenger hunt list deals with every mission Sector V had.
Numbuh 363 is seven years old.
After the end credits, a drawing of the KND sitting together with their backs turned viewing the sunset is shown with the message "Stay Young..." written above.
Numbuh 363's first name is Harvey.
Numbuh 1: (while flying in a S.C.A.M.P.E.R) Numbuh 5, find the nearest item on the list! 3 and 4, get all the weapons so we're ready to rock. And Numbuh 2......
Numbuh 2: (happily) Yes, sir!?
Numbuh 1: Steer the ship. We're about to hit a mountain.
Numbuh 2 (runs to controls): AHHHHHH!
Numbuh 1: (to #3) "YES! Thank you for the memories! Now, if you don't mind, I'd like to talk about something other than...cake?" (stopping at the sight of the movie set)(angrily) "You...Kids Next Door, battle stat-Ah!" (captured by green fire)
Father: "No, no, no! CUT! You Kids Next Door are not in my script! Ugh! On the other hand, you might just be what this picture needs."
Numbuh 1: "Father. What are you doing in our treehouse?"
Father: "I'm merely getting in touch with my more artistic side to create the mega-blockbuster smash of the century!"
Delightful Children: "...And we're the stars! It's called, 'Let Us Eat Cake'! Just think, soon jealous kids all over the world will see us enjoying our delicious cake on the big screen! And what better backdrop to savor it in than your stupid treehouse!" (laughing)
Numbuh 4: "Oh, man! It ain't gonna be one of those chick flicks, is it?"
Father: "ENOUGH! We must film before the muse escapes me." (ushering in the Delightful Children) "Okay, my stars. In this scene, you will unveil the cake. I wanna feel the passion, between you and its scrumdillyumminess. The electricity! THE LOVE!!! ...Quiet on the set! Annnnd...action!
Numbuh 5: Look at you. Best operative on the planet. And to think, I had to convince you not to quit this morning.
Numbuh 1: If it wasn't for you, I wouldn't be in the Kids Next Door in the first place.
Numbuh 5: Oh please. They woulda found you eventually. I mean…these guys did. (pause) Look, are you sure you wanna do this? You don't hafta go.
Numbuh 1: You know I can't pass this up, Abby. You're only a kid once, right? (takes off sunglasses) So this means you're in charge of Sector V again.
Numbuh 5: (backs away) No, no no, nuh uh uh uh uh uh!
Numbuh 1: I'm not giving you a choice this time. Who else is gonna take care of the guys?
Numbuh 5: But - !
Numbuh 1: Abby, we both know you're the only one on this team with any real common sense. While I'm screaming that we're being invaded by tiny, kid-eating leeches falling from the sky, you're the one telling me it's only snowing. You were a way better leader than I ever was. (gives her sunglasses) So lead Sector V.
Numbuh 5: But…it won't be Sector V...without you.
Numbuh 1: It was before, and it will be after.
Numbuh 1: Alright guys listen up, even if we never see each other again just promise me one thing, that you'll never grow up. Even if you're 100 years old and don't remember a thing about our times together, you'll still be a kid at heart, ok?
Adult Hoagie: While I learned my lesson about stealing from nerds a long time ago, it appears Stickybeard hasn't.
Interviewer: (about the DCFDTL) So they got away?
Adult Hoagie: You'd have to be PLANE crazy to think so! (laughs) Get it? PLANE crazy, they escaped on a plane!
Numbuh 1: Kids Next Door!...Goodbye.
Numbuh 1: (talking about the Delightful Children after they fall into a giant toilet) I've always wondered how they went to the bathroom together.
Interviewer: So, what happened next?
Adult Hoagie: Well. suffice it to say, Father wasn't happy finding us in his house.
(Cut to flashback)
Father: I am not happy finding you kids in my house!
I.N.T.E.R.V.I.E.W.S. stands for It's Now The Extra Really Very Interesting End Wrap-up Story.
KND Structure: R.E.B.R.I.D.G.E.R.A.T.E.R. Revered English Bridge Really Is Doubly Great Enemy Roadblock And Totally Ends Rundowns.
KND Weapon: B.E.A.R.H.U.G.G.A.H. Big Enormous Assault Rifle Hurls Ugly Grizzly Giving Agonizing Hugs.
Assuming that Sector V headquarters is in the same vicinity as the amusement park, then Sector V must be in a state that borders New Jersey.
Among the villains seen in during or taking part in this episode Mr. Boss, Stickybeard and his pirates, Cheese Shogun Roguefort and his Cheese Ninjas, Crazy Old Cat Lady, Grandma Stuffum, Count Spankulot, Toilenator, Robin Food and his Hungry Men, Mr. Wink and Mr. Fibb, the Senior Citizen Squad, the Six Gum Gang, Willard, Knightbrace, Potty Mouth, Queen Tie, Laura Limpin/Big Badolescent, Professor XXXL (seen with deer antlers), The Great Puttinski, Cuppa Joe, and the Ice Cream Men.
As an adult, Numbuh 3 becomes CEO of the Rainbow Monkey Corporation and shuts down the Rainbow Monkey Let's Learn about the Lavatory Fun Park just to get rid of the smell.
We learn that the thing Numbuh 1 was chosen for was to be the first kid from Earth in the Galactic Kids Next Door.
Numbuh 4 will become a doctor after getting a medical degree from Harvard University.
Numbuh Zero (Monty Uno) gets recommissioned temporarily to see his son off toward the end of this episode.
Many characters in the series return, some only for cameoes.
It would appear adulthood is actually a disease that is affecting kids everywhere.
The interviews in this episode are done in live-action.
Numbuh 1 leaves the KND and becomes a Galatic KND operative.
When Nigel leaves, Numbuh 5 will become leader of Sector V, and then she will become the Supreme Commander of the entire Kids Next Door organization three months after Numbuh 1 left. She decomissioned Numbuh 363 because he always freaked out whenever somebody touched him.
Numbuh 362's little brother, Numbuh 363, returns in this episode. His real name is Harvey.
Numbuh 1's mother used to be an operative known as Numbuh 999, the first girl operative in the Seventh Age of the KND.
Numbuh 5 will be married to Numbuh 2.
Numbuh 4 will be married to Numbuh 3.
Operation: I.N.T.E.R.V.I.E.W.S. is the only double-length special episode as well as the series finale of Codename: Kids Next Door.
When the Delightful Children are sitting on the bow of their cruise ship talking about their cake, the way they hold out their arms is similar to the "I'm Flying" pose of Titanic fame.