I can't state enough how much I love this movie, and one of the reasons is because the world that the Disney artists crafted for it is so well realized and believable, it really makes you think. Some of these theories were thought up by other fans, but I still support them 'cause I think they're really cool ideas.
- Gene is responsible for the animosity that the Nicelanders feel towards Ralph at the start of the film. He's harbored a chip on his shoulder for 30 years about being the guy who Ralph throws out of the building at the start of every game, and his bad attitude towards Ralph influenced the way the other Nicelanders treat him too. Felix didn't believe Gene's prejudice was justified, but was too nice to say anything to the contrary. And Ralph was just too naturally complacent and introverted to speak up, until finally exploding at the 30th anniversary party.
- On higher levels of Fix-It Felix Jr.
, Ralph starts throwing furniture out of the building. Chairs and tables knock off a little bit of Felix's health; heavier things like ovens and refrigerators kill him instantly.
- Mr. Litwak is a devoted video game fan, which is why he loves his job so much. He treats his games as if they were his children, and keeps a powerful back-up generator in the back room in case of a thunderstorm or other threat of a power outage, so his customers' hard-won high scores can be preserved. Thus, Game Central Station has never experienced a loss of electricity. The video game characters don't let on that they're alive, but they still hold Mr. Litwak in very high respect.
- Since the Cy-Bugs are uncontrollable eating machines, there's special programming on Calhoun, her soldiers, and the first-person shooter that prevents them from being eaten. Still, being attacked by one is pretty darn frightening, which explains Markowski's PTSD.
- Calhoun reports to two higher-ranking officials, Colonel Lockload and General Hologram, who appear in cutscenes between levels. Lockload is a strict, no-nonsense officer who disapproves of Calhoun's marriage to Felix, since he believes it's detrimental to her pre-programmed backstory; he thinks she'd do better to remain serious and traumatized, to uphold the plot of Hero's Duty
. Hologram is more affirmative and celebrates Calhoun's marriage, since having Felix in her life has clearly made her an even stronger person.
- Sugar Rush
is hugely popular in Japan, its country of origin, to the point where there's a ton of merchandise based on it - everything from candy to RC cars to McDonald's Happy Meal toys. There's also an anime series that lasted 81 episodes but was never translated into English.
- There are ten tracks in Sugar Rush
, each one themed to a different racer. Gloyd's track is a candy pumpkin patch lined with black licorice trees and dotted with candy corn in the pavement that you have to drive around; Adorabeezle's track goes up and around the ice cream mountain, behind a chocolate syrup waterfall and off a huge ski jump; Minty's track is lined with candy apple trees and features caramel pits that you have to jump just right; etc.
- Turbo picked up the Konami Code in 1987 from Toad, who was just sharing interesting information at Tapper's one night. He used it to take down RoadBlasters
, then laid low for ten years by hiding out in the castle from Dragon's Lair
. When Sugar Rush
was plugged in, he snuck past the Surge Protector while the game was still calibrating, then cornered Vanellope in her castle and knocked her out. When Sour Bill arrived, he said "Thank goodness you're here! The princess has fallen ill!" and told him the only way to cure her was to reset her code. Once inside the code room, he locked up the characters' memories and disguised himself as King Candy, then ordered Wynnchel and Duncan to take Vanellope away.
Vanellope still tried to sneak into the Random Roster Races anyway, so Turbo decided to delete her entirely. He couldn't do it, though, and only succeeded in turning her into a glitch. When Sour Bill informed him that the game would reset if she ever crossed the finish line, he began his smear campaign against Vanellope, vilifying her in the eyes of the other racers and making them fear that she would destroy their world if she ever entered a race.
- Whenever Vanellope would glitch while in physical contact with another Sugar Rush
character, it would momentarily restore said character's original memories. (Just look at Taffyta's face when Vanellope pulls her away from the dismantled Likkity-Split - for half a second, she gets this expression like she's thinking "Oh my God, what am I doing?")
- Swizzle and Gloyd are Rancis' best friends, and they get into all kinds of mischievous trouble around Game Central Station. Jubileena and Adorabeezle are inseparable BFFs, always very giggly and goofy. Candlehead's ditziness gets on Taffyta's nerves, but she still regards her as a friend.
- Sour Bill's face may never show it, but he's extremely loyal to Vanellope and regards her as a true friend. Unlike King Candy/Turbo, she actually treats him with respect, even if she does tease him a lot.
- After the events of the movie, Ralph became a hero figure to the residents of Game Central Station, and he recorded several public service announcements like Sonic the Hedgehog. He spoke of the importance of bad guys to a video game's world, and urged good guys and NPCs alike to give bad guys a chance.
- Video game characters cannot enter the physical world. They require electricity to exist; if they ever tried to walk out of an open electrical outlet, they would disintegrate instantly. The Surge Protector maintains a strong electrical barrier over open outlets in Game Central Station, ensuring nobody accidentally walks through one.
By the way, you can expect a lot of these to turn up in that big WIR fanfic I'm writing