- Like Doug Funnie, Mr. Simmons wears a green sweater vest over a white t-shirt and brown slacks.
- Baby Arnold wears a light blue shirt and diaper like Tommy Pickles, at least when he was a baby.
- The way Helga shouts “AAARRRRNNOOOOOOOOOOOOLD!” may refer to Dave Seville’s “AAAALLLLLVVVIIIIIIIIIIIINNN!” ultimatum.
- Just like Binky Barnes, Harold first starts as a bully before slowly becoming friends with the main protagonist.
- 'Dino Land' spoofs any kind of amusement parks such as Disney Theme Parks and Six Flags, also, the entrance is similar to the entrance Jurassic Park 1.
- Like the example above, ‘Wanky Land’ is an amusement park that spoofs Wackyland and Disneyland.
- Fictional singer Dino Spumoni is similar to Frank Sinatra.
- Oskar Kokoshka shares a similar name to an Austrian expressionistic artist.
- The kid who Helga keeps hitting each time he shows up each time the tsundere monologues about her unrequited love for Arnold is known as “Brainy.”
- Brainy’s hair is similar to Bart Simpson.
- The Abdicator appears to be based on Arnold Schwarzenegger.
- One episode features Grandpa reading a tabloid article about a "two foot baby born with a three foot beard" accompanied by an illustration that resembles an Elbonian child.
- One episode has a restaurant called ‘Mr. Chickens House Of Pancakes And Halibut’ which is a take on the restaurant chain Roscoe's Chicken And Waffles.
- This episode is based on an early comic strip called ARNOLD NARROWLY AVOIDS A THRASHING◊.
- The animation here resembles that of The Simpsons, Rugrats and Aaahh!!! Real Monsters.
- Not surprising since the pilot was animated by Anivision Inc., the same studio behind many episodes of those series.
- Harold says Thing’s catchphrase “It’s clobberin’ time!”
- Harold wears a red striped shirt and a crown strongly resembled the one that Jughead always wore.
- Arnold is called “Agent 9” by Grandma Pookie during the Lock Jaw breakout.
- Grandma Pookie and Arnold freeing a mistreated turtle from captivity is Jesse wanting to free an orca whale named Willy.
- Episode plot is also like the plot of TaleSpin episode “All’s Whale That End’s Whale.”
- Stoop Kid reads The Little Engine That Could, even quoting the line “I think I can... I think I can...”
- Harold’s “The horror! The horror!” line comes from Heart of Darkness and Apocalypse Now.
- Seeing Phoebe laughing at a joke about her:
- The wrecking balls are named Big Bertha, Black Thunder, T. Minnie Martoonis, Judgement Day* and The Terminator.
- Next to Arnold’s “THIS IS NOT MONEY” jar is a “Donna Smith’s Spelling Book,” the name being the show’s production manager.
- Grandma Pookie is seen wearing a shirt with a logo circled with the “Black Sox” surrounding a picture of a black sock, a reference to the Boston Red Sox.
- It may also be a reference to the infamous "Black Sox Scandal," in which eight members of the Chicago White Sox baseball team were accused of intentionally losing games in the 1919 World Series in exchange for money.
- The engineer’s ghost sitting on the front of the train at the end is like Baron Samedi being perched on the front of the speeding train despite James Bond kicking him into a coffin full of snakes.
- The engine itself resembles Spokane, Portland and Seattle 700.
- The engine's tender reads "Great Northern" which was a real railroad that operated across the American Northwest including Washington where the show takes place.
- Helga's "I do believe in mad engineers! I do believe in haunted trains! I do, I do!" line is more than likely a nod to the "I do believe in spooks!" line from The Wizard of Oz.
- Arnold is referred to as “Bruce.”
- To a mirror:
- Arnold tries taking a fly from Grandma Pookie’s hand.
- Frankie G. looks like Arthur "Fonzie" Fonzarelli.
- Frankie G. high fives a man in his apartment wearing a combat jacket and Mohawk similar to Travis Bickle.
- The water tower at the end reads “LOWTWATER,” named after Steve Lowtwait, a layout designer on the show.
- Frankie G. takes Arnold to a motorcycle movie called The Wild One.
- Frankie G. wears a Star Trek pin.
- 'Das Subway' derives from German film Das Boot.
- Episode plot is similar to an episode of The Odd Couple.
- After Gerald points out the train has stopped:
Helga: No kidding, Einstein.
- Next to the pay phone is a sign for the 'Tucker Railroad,' “Tucker” being the surname of one of the story’s directors Tuck Tucker.
- 'Marumba Rights' refers to Miranda Rights.
- The whole episode plot parodies The Goonies.
- Upon finding a jelly bean:
- Harold rolls like a boulder after Sid, Helga, Arnold, Rhonda, Brainy and Phoebe as they run out of the rumbling cave.
- Elk Island is likely based on Skagit Island◊ to the north from Seattle that’s seen from the company Snee-Oosh that makes Hey Arnold!.
- While Arnold is at Gerald’s house eating dinner:
Timberly: Hey look! I’m Timberly the Pink Ranger!
- Mr. Purdy is named after Hey Arnold! writer Joseph Purdy.
- Episode’s story is similar to A Boy Named Charlie Brown plot.
- 'Onomatopoeia' means “words that sound like the sounds they represent.”
- The speech Pigeon Man makes at the end of the episode with him and Arnold on top the Brownstone is taken from Tom Joard’s speech.
- Pigeon Man flying away using a huge flock pigeons is almost similar to when James Trotter used a huge flock of seagulls.
- Helga says "What did he say? Koo Koo ka choo?" a reference to The Beatles’ song “‘I am the Walrus’” in which many people thought John Lennon said "Koo Koo ka choo," when in actuality he sang "Goo Goo Gjoob."
- The Pigeon Man is based on the Birdman of Alcatraz, Robert Stroud.
- About to change the “A” to a B” grade on Olga’s Elizabethan Poetry assignment:
- While depressed, Olga listens to a piece of 'Lacrimosa' from Mozart’s Requiem in D Minor.
- Helga tells Arnold “catfish are jumpin’ and the cotton is high,” an almost verbatim line from Porgy and Bess.
- The melting clocks in Helga’s dream resembles those of famous painting The Persistence of Memory by Salvador Dalí.
- The first place, Hawk Mountain, Arnold, Grandpa Phil and Gerald try to see Sally’s Comet is a real place near Allentown, Pennsylvania.
- 'Sally’s Comet' was aired on January 13, 1997 in commemoration to the Comet Hale-Bopp that passed over Earth in winter 1996 to spring 1997.
- 'Sally’s Comet' sounds like “Halley’s Comet.”
- The phone number on the “Have You Seen This Pig” billboard is 555-Pork.
- 'Abner Come Home' is based on Lassie Come-Home.
- Chess champion Boris Spassky is mentioned.
- There’s a Yahoo! Soda machine in the cafeteria.
- Several elements from 12 Angry Men are used:
- Harold, Phoebe, Gerald, Helga, Curly and Arnold have to figure out if Eugene pulled the fire alarm where the titular twelve angry jurors had to find out if the boy being accused of murder was guilty.
- Arnold being the only person to vote not guilty like there only being one man saying “not guilty” against the eleven jurors during the anonymous votes from both medias.
- Just like the one juror who voted “not guilty,” Arnold slowly gets the others to change their minds.
- A character has tickets to a sporting event, in the movie it’s baseball and here it’s wrestling.
- Arnold stabs a pencil in the table like how a juror does this with a knife.
- Phoebe has encyclopedic knowledge of Italian sauces.
- One of the record breakers in Arnold’s book is Frannie Caudell, a reference to Helga’s voice actress Francesca Smith and Arnold’s season one voice actor Toran Caudell.
- Helga makes reference to Don Quixote when she says “How many windmills have to knock you on your butt?”
- The spell Arnold uses to make Helga “disappear” consists of "Flanders, Fudd, McBoing-Boing and Whiplash" and the other has "Dastardly, Do-Right, Burns and Rubble."
- When reversing the “spell” that made Helga disappear, Arnold says “Wolf, Abzug, Steinem, Faludi, Helga come back and shake your booty!” the four words being the last names of feminists Naomi Wolf, Bella Abzug, Gloria Steinem and Susan Faludi.
- Arnold’s stage name 'The Great Arnoldini' is taken from “The Great Houdini.”
- Whole episode is the remake of the original Hey Arnold! pilot that aired in theatres along with 1996 film Harriet the Spy to which was based on an early comic strip called ARNOLD NARROWLY AVOIDS A THRASHING◊.
- Episode title may be based off 24 Hours.
- Harold shouts Thing’s catchphrase “It’s clobberin’ time!”
- The name of Hillwood stadium shares the same name as another stadium called 'Quigley.'
- Quigley stadium very closely resembles Tiger Stadium, home of the Detroit Tigers.
- Fictional baseball team Hillwood Black Sox is a reference to the Boston Red Sox.
- Hillwood baseball team’s best player is named Mickey Kaline, a mixture of former Yankee great Mickey Mantle and former Tiger great Al Kaline, both of whom are associated with The Fifties. Given the Suburbia setting, that wouldn't be unlikely.
- 'Bio Square' could mean . . .
. . . a variation of “biosphere,” an experiment where a number of people planned to live about a year in an entirely self-contained collection of building where even the air and water were recycled from inside . . .
. . . and the movie Bio-Dome.
- Department store ‘Kacy’s’ is based on real-life store Macy’s.
- It’s revealed Mr. Hyunh gave his two-four year old daughter to American soldiers during the Fall of Saigon in 1975 to secure her safety.
- Helga’s parents, “Big” Bob and Miriam sing half the “Jingle Bells” chorus.
- Grandma Pookie plays “Yankee Doodle Boy” by George Cohan on the piano.
- Mr. Bailey may be named after George Bailey.
- Nancy Spumoni is a reference to Nancy Sinatra who is the real life daughter of Frank Sinatra, she is presumably related to Dino Spumoni who is an expy of Sinatra.
- The "Nancy Spumoni Signature Snow Boots" could possibly be referencing Nancy Sinatra's hit song "These Boots Are Made for Walkin'."
- As Gerald walks away after questioning and teasing Arnold for reading poetry, to which he replies that he likes them:
Arnold: Oh soft, what light from yonder window breaks? It is the east . . .
Arnold: (dreamily) . . . and Miss Felter is the sun.
Gerald: (in disgust) That's it, now I'm pukin'.
- On the side of Miss. Felter’s apartment building has a billboard for “Lowtwait Natural Waters,” named for Steve Lowtwait, a layout for the show.
- Arnold calls Helga "Helga the Horrible." It's worth noting that Hägar has a wife named Helga.
- Helga is seen wearing her dress with the pink sleeves and white collar from what she original wore in the Claymation shorts and it the pilot episode.
- When Coach Wittenberg makes the team do pushups, they do it with their knees on the ground known as 'girl pushups.'
- The books Arnold and Gerald read are ‘The Purdy Boys’ novels.
- 'Tour de Pond' spoofs the bike race Tour de France.
- Even the showdown between Rex and Arnold is similar to the showdown between Greg Lemond and Laurent Fignon in the 1989 event.
- According to Arnold, Cecile lives on a farm in the Loire Valley.
- To Helga, before both depart ways:
Arnold: We'll always have Chez Paris.
- Arnold keeps one of masquerading Helga’s shoes just like in Cinderella.
- Arnold’s phone number is given as 555-123 . . . and yes, it’s missing a digit.
- Sid feeling he should act as Arnold’s slave as a way to thank him after the latter rescued the former from a falling board, thus driving Arnold crazy is like Clumsy Smurf doing Handy’s bidding thus driving him crazy after the latter saved the former from Gargamel.
- Oskar Kokoshka mentions character Buddy Love.
- When Arnold and Gerald are in House of Costumes, Gerald comments about being a "free man in Paris, unfettered and alive," stating he heard it on one of his parent’ old albums, referring to Joni Mitchell’s 1974 Court and Spark album and the “Free Man in Paris” written by her.
- Lieutenant Major Goose’s strict, military attitude is that of Sergeant Hartman.
- Walter Charles Walter is a parody of William Carlos Williams.
- On Mr. Simmon’s house, there’s a sign reading “Don’t worry, be happy,” not only is it a name of a Bobby McFerrin song but it’s one of Michelle Tanner’s catchphrases.
- When the students question Lieutenant Major Goose why certain things are so, Curly says “Why do fools fall in love?” which is a title of a song by Frankie Lymon and the Teenagers.
- Gerald’s poem is similar to Allen Ginsberg’s Howl poem.
- Timberly’s doll ‘Wally’ appears to be crude parody of Barney the Dinosaur.
- After getting home from the park and reads a comic book and laughs:
- 'Monkeynucleosis' a parody of “mononucleosis,” better known as “mono,” that’s an abnormally high proportion of monocytes in the blood.
- Grandpa Phil owns an autographed photo of Austro-American starlet Hedy Lamarr.
- Much like how Arnold and Gerald try to catch the titular prehistoric fish is like how Homer Simpson goes after a giant catfish.
- Gerald drops this line after seeing Big Caesar:
Gerald: [[Film/Jaws We're gonna need a bigger swan]].
- When Arnold and Gerald come back to the docks:
Helga: Why if it isn’t the Skipper and Gilligan.
- 'Longest Monday' derives from Cornelius Ryan’s The Longest Day.
- Gerald is seen kicking a parody CocaCola can before he sees his dad and decides to come home.
- Arnold’s computer is made by Purdy Electronics, Joseph Purdy being the writer of this episode.
- 'Freeze Frame' shares the same name as a song by J. Geils Band.
- The trophy for the poetry contest is a statue of Emily Dickinson.
- Episode plot is very similar to when Blair Warner cheats on a poetry assignment by copying a poem by Emily Dickinson, and it ends up finishing in third place in a New York statewide poetry competition.
- The sign in Phoebe’s room reads “CARPE UNUM,” which means “Seize One” in Latin.
- A store called ‘Baby Town’ that sells various baby products is based on actual store Babies Я Us.
- Robbie Fisher and Boris Slasky are parodies of chess champions Bobby Fischer and Boris Spassky.
- During the training scene, Grandpa runs up a flight of stairs and celebrates at the top towards the city just like Rocky Balboa.
- The story is almost similar to the black and white segregation as the "cool kids" discriminated against the "geeks," the "geeks" having to sit at the back of the bus, sit at the geek tables, and get all the bad equipment, just like the blacks did. Not to mention Rhonda refusing to move to the back of the bus because she had glasses like Rosa Parks.
- Becoming fed up with the treatment toward the geeks Rhonda yells “If you prick us, do we not bleed? If you tickle us, do we not laugh?,” a verbatim line in the first scene of act three from William Shakespeare’s The Merchant of Venice:
Shylock: If you prick us, do we not bleed? If you tickle us, do we not laugh? If you poison us, do we not die? And if you wrong us, shall we not revenge?
- After Eugene tells some little kid who looks up to him that it has to be way past his bedtime:
Kid: I have to be in bed by 8:30 right after my favorite show Yo Ernest.
- Besides episode title 'What’s Opera, Arnold?', in Helga’s dream sequence* , she reveals her weapon to be a "golden magic slingshot" to which Gerald mentions that he thought the weapons were supposed to be a "spear and magic helmet" all alludes to What’s Opera, Doc? short.
- When first introduced in Arnold’s dream, Gerald’s singing “Figaro.”
- Twice, Curly says “Thank you very much” like Elvis Presley.
- Mr. Packenham and Harold mentions Pagliacci, Harold even dresses and sings like him..
- The opera Mr. Packenham takes the students to is Carmen.
- The “alien” costume and makeup worn by Helga, Harold, Curly, Phoebe, Rhonda, Eugene and Sid are vaguely similar to the Talosians.
- Gerald's father is disguised similarly to Fred Flintstone at the party.
- The entire episode is based on the classic The War of the Worlds radio broadcast by Orson Welles and the MercuryTheatre:
- Gerald’s “Aliens are coming to destroy the Earth!” broadcasted line was thought to be true and caused panic in the neighborhood.
- Arnold and the gang fake an alien invasion using a water tower with Christmas lights for the UFO called Well’s Ridge.
- Episode aired fifty nine years and three days to the day of Welles’ 1939 radio broadcast.
- “Big” Bob Pataki’s voice actor not only used his Orson Welles voice for obsessive “UFO Tonight” presenter Douglas Cain but Cain spoofs Charles Foster Kane.
- When perusing the sports section of his newspaper, Big Bob mentions the “Packers,” a reference to the Green Bay Packers
- Helga tells Mr. Simmons that she learned her new country accent from the Clampetts, especially from Jed and Ellie Mae.
- When Stinky asks Harold to read the title of the Ornamental Horticulture magazine, the price can be seen to be $1 in United States currency and $10 in Canadian currency
- Mr. Simmons has been to Tierra del Fuego.
- When first locking himself in Principal Wartz’ office:
- Sticking his head out the window above the office door.
- The company that makes the publicity for “Yahoo! Soda” and where Stinky filmed all his commercials is Snee-Oosh Studios, named after the company that created this show, even having the same logo and symbol.
- Stinky starring in commercials and rising to fame is similar to the late American actor, voice artist and comedian Jim Varney, best known for his role as Earnest P. Worrell.
- Yahoo! Soda appears again.
- Yahoo!! is also a multinational internet search site.
- The name Yahoo! could also be a reference to the real life drink: Yoo-hoo. Though Yoo-hoo is chocolate milk instead of a soda.
- Arnold Schwarzenegger expy Abdicator appears again on a poster while Arnold and Stinky walk around the studio.
- The “Just Drink It” slogan is very close to the “Just DO It” slogan for Nike shoes.
- The ‘Revis and Jackie’ bit is a spoof of Regis and Kathie Lee, now known as Live with Regis and Kelly.
- Titular crabby author’s name Agatha Caulfield is a blend of Agatha Christie and Holden Caulfield.
- Once more, Elk Island is likely based on Skagit Island◊ and the fact it’s supposedly home of a massive treasure trove, in a cave, that some believe is haunted much like Money Pit on Oak Island in Nova Scotia.
- 'Helga Blabs It All' parodies Clarissa Explains It All.
- Grandma Pookie misreads Helga’s name as “Helen of Troy.”
- 'Harold the Butcher’ is based on Abdullah the Butcher.
- Country singer Travis Randall is based on Randy Travis, who provides Mr. Hyunh’s singing voice.
- The pictures at the recording studio and ‘The Great Old Opry,’ a takeoff on Grand Ole Opry, include Slim Wicken, Polly Barton and Honk Williams, all spoof of real life people Slim Pickens, Dolly Parton and Hank Williams.
- Helga knows Jujitsu.
- 'Hey Harold' is an obvious parody of this series title, Hey Arnold!.
- Episode’s a loose retelling of 1953 teleplay Marty.
- According to Gerald, Arnold has twenty three volumes of ‘The Purdy Boys’ novels.
- Gerald’s operation took place at Drymon Medic Clinic, one of the show’s directors is Derek Drymon.
- The scene with Helga and Phoebe in the car homages On the Waterfront.
- While quizzing Helga, Phoebe asks "What type of cheese is Holland famous for?" to which Helga guesses "Glockenspiel?" Though 'Glockenspiel' isn't even a type of cheese; it is a keyboard instrument with a set of metal bars, also known as orchestra bells. For the real answer, it’s Dutch cheese.
- One of the signs in Mrs. Vitello's shop reads "With ferns like these, who needs anemones?" a pun off the “With friends like these, who needs enemies?” saying that means when someone one thought as a friend treats oneself in an unpleasant way.
- Again, Elk Island is likely based on Skagit Island◊.
- When Sheena’s Uncle Earl takes Arnold, Grandpa Phil, Harold, Brainy, Phoebe, Helga, Stinky, Rhonda, Sid and Gerald to Elk Island, Phil standing proudly at the bow◊ is very reminiscent of George Washing Crossing the Delaware River◊, Phil even wears an outfit similar to George Washington’s commanding uniform.
- Harold is dressed as Rambo, Sid dresses like Davy Crockett, Stinky wears a Confederate uniform and Rex Smythe-Higgins I, Rex Smyth-Higgins III and the rest of the opposing team all dress in Red Coats garb.
- From Arnold confronts Rex Smythe-Higgins III at the fort, Rex taunts Arnold before he and fellow British re-enactors pelt him to Rex hearing saw noises in the forest parodies the scene in Monty Python and the Holy Grail between King Arthur and his knights and the French-controlled castle.
- In order to rescue Abner from being eaten by the opposing team, Harold, Arnold, Helga, Gerald, Phoebe, Sid, Stinky, Rhonda and Brainy all hide in a large wooden pig as Phil brings the “gift of truce” inside their fort, even one of the members recognizes the trick and tries to warn the leader, Rex Smythe-Higgins I, but he refuses to listen.
- This episode is inspired by real life events taking place in the San Juan Islands in (what is now) Washington State also called "The Pig War" in which the only casualty was indeed a British-owned pig, the shooting of which almost led to an actual war between the US and Britain.
- In regards to Stinky, when mocking the “geeks” at her party:
Rhonda: Where did he learn English? Green Acres?
- Hillwood has a “Statue of Justice” in its harbor where Eugene was once rescued from.
- The mechanic who’s set to fix Miriam’s car is based and sounds like Karl Childers.
- When Eugene says “Well, some kids would do that Wolfgang. Some kids would just give up and start falling apart, piece by piece. But other kids come home from school and wash up, and go racing in the streets” refers to the “Racing in the Street” song by Bruce Springsteen.
- The race track has a similar shape to Donut Plains 1.
- Stars and Stripes Forever plays through the first part of the end credits.
- When telling what work Helga had to do, “Big” Bob Pataki there was a three day weekend sale soming up, referring to Black Friday.
- The credits send out a special thanks to “Ol’ Blue Eyes.”
- After realizing that Mr. Simmons has been gone for some time after going to get the attention of the helicopter, the kids hear him singing The Battle Hymn of the Republic where they find him dangling helplessly from the latter two-three stories up.
- Phil’s rescue raft is called “Titanic.”
- Names of Phoebe’s parents are Reba and Kyo Heyerdahl.
- Arnold’s father Mitch uses the phrase “aye-aye-aye!” after falling down the cliff side for the second time is likely a referent to The Gods Must Be Crazy where a character frequently would use that phrase.
- From the sleeping sickness to fictional country where Arnold’s parents set off on a rescue mission and were never heard from refers to One Hundred Years of Solitude, though in the book, it was an island called Macono.
- The adults in Stinky’s spoofs Grant Wood’s famous American Gothic painting and the Norman Rockwell’s Freedom from Want Thanksgiving painting.
- The sixth grade girls watch a movie in which a character is heard saying “I know what you did last summer.”
- As the sixth grade girls watch TV, one asks if Bailey or Charlie is cuter to the others.
- 'Full Moon' refers to . . .
1) a lunar phase of the moon.
2) a play by Reynolds Rice.
3) a 1973 Kris Kristofferson album.
4) a novel by P. G. Wodehouse.
5) the English translation of 1937 film Terang Boelan from the Dutch East Indies.
6) the manga Full Moon o Sagashite.
7) a 1980 Charlie Daniels album.
8) a show with the same name.
9) a 1986 Paul Brady album.
10) a short story by Georgette Heyer.
- The foggy airport scene near the end where both Helga and Olga say goodbye is similar to the ending of Casablanca.
- Discovering wood shavings upon waking up, Sid finds his wooden pony’s head when looking under his bed covers.
- After Sid avoids Big Gino's calls, the doorframe above him says "Cogit Ergo Sum," a flawed Latin translation of Rene Descartes' famous quote "I think; therefore I am," it should be "Cogito Ergo Sum."
- The song in the commercial Mariam was shooting is called ‘Beepers Are A Girl’s Best Friend’ parodies the song “Diamonds Are A Girl’s Best Friend” from Gentlemen Prefer Blondes.
- Ernie hands Oskar Leo Tolstoy’s War and Peace to prove that Oskar only memorized Charles Dickens’ A Tale of Two Cities so that he could win the bet place by Earnie and Mr. Hyunh.
- After giving Chocolate Boy malted milk balls in favor of repeatedly read the first page of A Tale of Two Cities to Oskar until he memorizes it:
Chocolate Boy: It was the best of times, it was the worst of times.”
- After giving Chocolate Boy malted milk balls in favor of repeatedly read the first page of A Tale of Two Cities to Oskar until he memorizes it:
- The 'Headless Cabbie' is based on the Headless Horseman.
- 'Friday the 13th' can refer to . . .
. . . the Friday the 13th franchise, . . .
. . . the 1980 film that started it all, . . .
. . . a NES licensed game based on the movies, . . .
. . . a horror television series unrelated to the movies . . .
. . . or the date considered unlucky.
- The paper towel holder in the bathroom has “HB” carved into it, though it may refer to Harold Berman.
- The titular parrot◊ is similar to the Quaker parrot◊.
- Where the parrot is killed by Phoebe’s oversized pet lizard eating him is similar to the classic “Dead Parrot” sketch.
- During the credits for Arnold and Gerald's favorite TV show Pop Daddy, the executive producer is credited as "Snoop Cat."
- Where Arnold is in the comic store, one of the issues in the rack says “SpongeBob.”
- Behind Arnold are two comics forming the picture of CatDog.
- The music playing when Harold tries to lose weight is almost identical to the music that plays when Rocky Balboa tries to get fit.
- The microphone the reporter, who's holding news cast at the Civic Auditorium, reads "E3."
- Johnny Stitches resembles John Lennon.
- Because Patty’s parents are much shorter than their daughter, they may suffer from dwarfism.
- Both Phil and Martin Johanssen, Gerard’s dad, were both Privates in the U. S. Army, but are not promoted until the end of World War II and Vietnam War, respectively.
- During the WWII flashback, Phil is seen holding an autographed photo of Austro-American starlet Hedy Lamarr while he’s peeling potatoes.
- Phil delivers 'Cham' to Northern France is a parody of “Spam,” the difference between Cham and Spam being that Spam was made of ham while the Cham was combination of chicken and ham used for military for experimental purposes in 1944.
- The armband of the Nazi soldiers is a sad face. This replaces the real Nazi armband of a swastika that had been used by Nazi Germany from 1933 until 1945, or Adolf Hitler's death, as it may have caused some controversy, most especially in Germany as well as in several other countries that implemented anti-Nazi laws such as Austria and Poland if they decided to use the real symbol. It is also important to note the swastika is not of German origin as the swastika has many Asian variants.
- Right before he gets his diploma, Grandpa Phil says “The sum of the square root of any two sides of an isosceles triangle is equal to the square root of the remaining side” to Wartz, the same thing Homer Simpson said.
- The equation Phil recites is the same equation recited by the Scarecrow when he receives his "brain" from the Wizard.
- Pookie’s “melts in your mouth, not in your hand” comment is the slogan for M&M’s candies.
- There’s a movie poster advertising ‘Evil Twin II.’
- On the poster has an undead corpse popping out of a grave, scaring a woman, a refence to any horror movie involving supernatural.
- During their fight:
Suzie: Oh sure it’s a good day for you! Tomorrow’s a grand day for you because tomorrow is the day you get a job! Tomorrow is the day you pay the bills, tomorrow is the day you grow up and start acting responsible. But tomorrow never comes for you does it Oskar because it’s so conveniently a day away.Oskar: Right, it’s always a day away, just like the song that little orphan girl sings.
- After getting off the phone, Suzie calls Oskar’s name:
Oskar: Are you talking to me or that rugrat?
- While stuck in traffic on his way to the hospital with sick Baby Oskar in a taxi, not only does Oskar complain about the Pope coming today but there’s a banner saying “SAY HI TO THE POPE,” who at the time of this episode, would been Pope John Paul II.
- After Monkeyman changes his clothes and washes his hair, he’s dressed like Willy Wonka.
- Sid’s white Winklepickers are the prized Beatle boots.
- Helga wants to go to a wrestling match called WrestleMania.
- 'Buses, Bikes and Subways' spoofs Planes, Trains and Automobiles.
- Chocolate Boy swimming in a vat of chocolate is similar to Augustus Gloop swimming in a chocolate river.
- Phil’s sister Mitzi looks like her voice actress Phyllis Diller.
- Phil has dishes reading . . .
. . . "1948 – Coney Island,”. . .
. . . "1944 – Miami Beach," . . .
. . . "1936 – Pike's Peak" . . .
. . . and "1932 – Los Angeles.
- According to Phil, this episode takes during an 'Indian Summer,' a warm period during the fall months.
- The movie both a young Coach Wittenberg saw at a drive-in movie theatre and the boys (Arnold, Gerald, Stinky, Sid, Harold and Eugene) re-enact has the line “Wayne! Wayne! Come back Wayne!” though here, 'Wayne' is the horse’s name instead of the cowboy.
- Dr. Bliss has an Edward Hopper painting in her office.
- During the word association, Bliss says “rocket.”:
Helga: Locket! Pocket! Davy Crockett!
- Toward the end of their word association.
- During Helga’s flashback to when she was four or five, a fifteen year old Olga is playing on the piano with her parents behind her:
- Before revealing her feelings for Arnold to Dr. Bliss, Helga questions even if under torture her secret will be kept, said torture being “stuck your head in a cage with a starved rabid rat,” the same suffering Winston Smith was subjected to.
- Some of Dino’s ’60s records spoofs other musicians including The Doors depute album The Doors and The Beatles’ Sgt. Pepper’s Lonely Hearts Club Band album.
- The cover of Dino’s ‘Trippin’ With Dino’ album is based off Robert Crumb’s 1968 Keep on Truckin’ comic.
- Among his possessions, Dino owns a copy of I The Jury by Mickey Spilante.
- 'BABEWATCH' is a crude reference Baywatch.
- The Beach Officer’s appearance and voice is based on William Shatner.
- 'Sid the Vampire Slayer' parodies Buffy the Vampire Slayer.
- 'Gerald’s Game' shares the same name as Stephen King’s Gerald's Game horror novel.
- Some noises from the arcade games are taken from Atari 2600 version of Pac-Man.
- Lamoreaux’s Bookstore is named after one of the show’s regular writers Michelle Lamoreaux.
- One of the books is title Frog Prince at the bookstore.
- Sid wears a Davy Crockett hat all through the episode.
- After Gerald’s father Martin tells Harold there’s no way he could get rabies from the raccoon that bit him because his skin wasn’t broken:
Sid: Yes he could! It’s just like that show “When Animals Attack!” It was about—
Phil: Oh knock it off! The boy’s fine!
- As pointed out by Sid, former Monkee Davy Jones appears.
- This isn’t the first Nickelodeon show where characters sing Miss Suzie had a Tugboat.
- Where both the boys (Arnold, Sid, Harold, Eugene and Gerald) and their fathers are farting in their tents comes from Blazing Saddles.
- The song ‘I Will Prevail’ Principal Warts sings is a parody of Gloria Gaynor’s “I Will Survive” song.
- Episode’s plot is very similar to The Simpsons episode “Sweet Seymour Skinner's Baaddaasss song” . . .
. . . goody-two-shoes Ned Flanders replaces Principal Skinner like Mr. Simmons replaces Principal Wartz, . . .
. . . with both original principals gone, the kids cause chaos in the schools, . . .
. . . Arnold and Simmons try to get Wartz back like how Bart tires to get Skinner back, . . .
. . . both Flanders and Simmons say "I intend to put the ‘pal’ back in ‘principal!’" . . .
. . . and both Principal Skinner and Principal Wartz cry when walking by the school.
- The fourth graders face two bullies sharing a name of a composer who fight over Gerald Field, the fifth grade school bully Wolfgang and new bully Ludwig who returns and wants the vacant lot for himself.
- 'New Bully on the Block' parodies New Kids on the Block or NKOTB.
- At one point, Phil asks “What the Helen of Troy is that?
- In the credits, it says “NO FROGS OR PIGS WERE HARMED IN THE MAKING OF THIS FILM.”
- Helga rants about sending Arnold to a galaxy far, far away.
- How Curly yells “It’s not fair!” sound like Pee-Wee Herman.
- This episode has Scooby-Doo gags all over:
- Helga shutting both south and north gates, as well as shaking the north gates by ropes to make it look like a ghost did it.
- The moment Arnold notices Curly’s red striped socks when the latter was dressed as the Ghost Bride and unmasking him is like Fred, Daphne, Shaggy, Velma and Scooby finding clues before unmasking the monster of the week.
- The reveal of how the gags were pulled off.
- At one point, Principal Wartz says “D’oh!”
- Toward the end, Harold suggests he and Patty go see the new Shy Stallion movie, Shy Stallion being a parody of Sylvester Stallone.
- Helga calls Rhonda “Cruella.”
- Rhonda pretending to be Curly’s girlfriend for a week after he removes a stain from her mother’s birthday present is similar to what happened to Ronald Miller and Cindy Mancini.
- Pookie calls herself Mary, Queen of Scots.
- When opening the door:
- 'A Day in the Life of a Classroom' parodies “A Day in the Life” song by The Beatles.
- Right after President Helga’s inaugural speech during her dream, a character can be seen in the crowd sporting a mo-hawk and a military jacket similar to Travis Bickle.
- Arnold is a fan of Thelonious Monk.
- The park being named 'Tina Park' possibly refers to Tom Park, one of the layout designers.
- In regards to Rhonda’s rehearsal:
Mr. Leichliter: Frankly my dear, I don’t give a hoot. Next!
- Mr. Leichliter’s “Nice guys finish last!” line is a title of a Green Day song.
- Leichliter even says one of Snagglepuss’s catchphrase “Exit, stage left!”
- The kids singing “‘Keep Your Sunny Side Up!’” seems lot like “On the Sunny Side of the Street” song.
- Helga says "Yeah, right. And I'm Mary, Queen of Scots".
- Stinky’s turtle is named “Snappy.”
- Ice cream server Wyatt’s appearance and character role is similar to Jeremy Freedman.
- The 'YMMA' is a spoof of the YMCA . . .
1) a worldwide organization short for Young Men’s Christian Association aimed to put Christian put Christian principles into practice by developing a healthy "body, mind and spirit."
2) a 1978 song by the Village People.
- At the end, a pool opens in the middle of the gym like in It's a Wonderful Life and Whatever It Takes, though the idea came from Beverly Hills High School Swim Gym.
- Again, the sleeping sickness and fictional country refers to One Hundred Years of Solitude, though in the book, it was an island called Macono.
- It’s revealed the name of the fictional country Arnold’s parents went to is 'San Lorenzo,' the name of an insular nation.
- Stella wears a tank top similar to what Lara Croft wears.
- Miles telling Stella not to look at La Corazon is like Indiana Jones saying not to look at the Ark of the Covenant.
- Miles hating spiders is like Indiana Jones hating snakes.
- Miles yelling “Stella!” in almost exact same way as Stanley Kowalski does.
- The movie’s poster is like Jimmy Neutron: Boy Genius with both main protagonist up front and center, friends behind him and the enemy hovering above, hovering above, reaching out to them and being larger than their actual size.
- Grandma Gertie's escape from prison is nearly shot-for-shot a recreation of Andy DuFresne's escape in The Shawshank Redemption, complete with hiding a hole in a wall with a poster and crawling through the sewers.
- In the context of a fight with Nick Vermecilli, Big Bob is splattered with green pickle juice, the juice turning his skin green, Bob tears off his shirt and is wearing torn brown pants, not to mention his eyes become red.
- When Grandma Gerti breaks out of prison via discovering a giant hole in the wall under a poster and escapes is identical to that of Andy Dufresne’s escape through the sewer.
- After Murray the bus driver is knocked out, Helga, Arnold and Gerald are stuck in a runaway bus.
- Helga disguises herself in a trench coat and hat, calling herself 'Deep Voice,' a parody of “Deep Throat” . . .
1) name of an infamous Watergate informant who leaked information about the FBI’s investigation of the scandal to journalists Carl Bernstein and Bob Woodward.
2) a character in The X-Files.
3) the alias Gray Fox used as Snake's anonymous informant.
- Helga’s line Just call me . . . Deep Voice” is a verbatim of the transmission “Just call me Deep Throat” after Raiden gets a codec.
- The “sneeze” sound effect in the Nickelodeon Studio vignette originates from Nintendo 64 video game GoldenEye.
- Arnold and Gerald putting on their black suits and shades parodies what Agent J and Agent K do.
- Scheck’s henchman Nick Vermicelli orders two Bartlett’s in the restaurant, the name of co-screenwriter and Hey Arnold! creator Craig Bartlett.
- As the police put handcuffs on him and take him away:
- Gerald lowering Arnold down with a rope from the roof in Nick Vermicelli’s room in order to grab the key of the safe deposit box is like Franz Krieger lowers Ethan Hunt down from the ventilation shaft on cable into the CIA computer room.
- Scheck sings the line “. . . You take the high road and I’ll take the low road . . .” from The Bonnie Banks o' Loch Lomond as he drives his car down a street parallel to the one the bus Arnold, Helga and Gerald are riding is on.
- Vermicelli’s workers blow up a freeway to prevent Arnold, Gerald, Helga and an unconscious Murray from getting to the neighborhood is like Police Commissioner Blakelock trying to stop Detective Ben Shockley and Augustina "Gus" Mally from entering Phoenix in order to clear their names.
- The 'tomato incident' is like the Boston Tea Party.
- A store sign has the name “Viksten” on it, referring to co-screenwriter Steve Viksten.
- Undercover Brother, Casablanca, Charlie's Angels, All the President's Men, Once Upon a Time in America, Spawn, Sunshine State, Nineteen Eighty Four, The Avengers, Jay and Silent Bob Strike Back, Totally Spies! and The Blues Brothers are parodied or mentioned.