~ Arthur wreaking havoc after scanning an insecurity.
~ Arthur through the clones of Ralph.
Arthur (also known as the Wreck-It Ralph Virus or Ralphzilla) is the main antagonist of Disney's 57th full-length animated feature film Ralph Breaks the Internet. It is an insecurity computer virus that was made to duplicate and spread throughout everywhere that is to be infected, the twist being that Ralph himself is the reason behind its depraved nature.
Six years following the demise of Turbo and the Cy-Bugs, the game Sugar Rush is about to be put out of order due to a broken steering wheel. Wreck-It-Ralph and Vanellope von Schweetz (the game's princess) travel to the Internet through a Wi-Fi router, where they win a bidding for a new steering wheel that will save the game, and they have 24 hours to make enough money to complete the purchase. To that end, Ralph posts several videos of himself online to get on the top trends and earn some money.
However, Vanellope takes solace in a new game called Slaughter Race and takes a strong interest. Though Ralph finally manages to earn enough money to buy the wheel (despite getting several bad reviews), he is distraught to learn that Vanellope has decided to stay in Slaughter Race rather than return back to her old game. Desperate not to lose her as his friend and thinking more about himself than Vanellope's own interests, Ralph turns over to the Dark Web, which is ruled by Double Dan.
Upon hearing of Ralph's intentions, Double Dan presents him with his latest virus dubbed Arthur, warning him that it can analyze any imperfection and spread itself to other parts of its surrounding area. Double Dan also warns Ralph not to let Arthur escape the game because it would wreak havoc across the Internet if it does. Ralph releases Arthur into Slaughter Race, and it scans Vanellope's insecurities, inheriting her glitching powers and allowing itself to wreak havoc on Slaughter Race, something which Ralph did not expect. As such, Slaughter Race is forced to be shut down and rebooted, and Arthur is presumed to be deleted.
A guilty Ralph confesses his actions to Vanellope, who angrily breaks off her friendship with him as a result, much to his discomfort as he too felt that Vanellope's selfishness and desire to "go Turbo" made her guilty as well. Having survived and escaped the shutdown, Arthur secretly spots Ralph and scans his insecurities over the loss of his friendship with Vanellope. Taking the opportunity, Arthur duplicates itself into countless clones of Ralph, scourging the Internet in a rampant search for Vanellope and breaking off people's connections in the process. Upon realizing what's happening, a remorseful Ralph decided to take action by luring the Ralph clones into an antivirus software (with help from Vanellope, KnowsMore and Yesss).
Unfortunately, Arthur catches wind of this and assimilates the Ralph clones into itself, growing into a gigantic version of Ralph (known as Ralphzilla) to capture Vanellope and climb up to the top of Google Tower to keep her there. Ralph tries to stop Arthur from doing any further damage, but this only incites an angry Arthur to grab Ralph, intending to crush him to death with its fist. However, Vanellope begs Arthur to spare Ralph by promising to be its friend.
Before Vanellope can submit herself to Arthur, Ralph calls out Arthur for its selfish possessiveness towards Vanellope, and that it would be best for both of them to let Vanellope make her own decisions. This revelation is what touches Arthur to finally let Vanellope go and reconcile her friendship with Ralph, thus resolving Ralph's insecurities for good.
With Ralph's insecurities finally resolved, Arthur happily accepts its fate of being deleted from the Internet, exploding into a bright light before dissipating from existence. Ralph would later be rescued by the Disney Princesses, and the Internet is rebooted back to its normal state. Ralph and Vanellope retain their friendship despite the events and they remain close once Vanellope moves to Slaughter Race.
In its normal form, Arthur resembles a black leech-like creature with a large glowing orange eye with a yellow, diamond-shaped pupil. In its secondary form, Arthur looks exactly like Ralph, except that he has more of a red hue and circuit lines across his body. Afterwards, Arthur takes on the appearance of a gargantuan Ralph made entirely of Ralph clones.
Being a computer virus, Arthur is shown to be very wrathful and destructive in nature as it can scan any object's flaws for its own benefit. Eventually, after scanning Ralph's insecurities, Arthur becomes more ruthless as it scourges throughout the Internet, even willing to kill Ralph when the latter tried to stop him. It also proved itself to be quite obsessed with Vanellope as it intends to have her for itself and no one else. Thus, he represents how Ralph acted once he let his insecurities get the best of him.
However, Vanellope's gesture of friendship along with Ralph convincing it to let Vanellope go free is what convinces Arthur to give up its rampage; even when Ralph's insecurities are resolved afterwards, Arthur makes a genuine smile before accepting its fate of being deleted from the Internet.
Arthur shows what Ralph would have become if he'd let his selfishness get to him. That said, like Ralph, it changed its ways and did what's best for someone it considered a friend. It also represents what Ralph would have become if he was overly controlling of his own life and if he let his temper get the best of him.
Powers and Abilities
As a computer virus, Arthur was able to scan any object or character for any weakness that it can exploit and spread out to wreak havoc. This was shown when it scanned Vanellope for her glitching abilities and exploited them to lay siege in Slaughter Race.
After scanning Ralph's insecurities over losing Vanellope, Arthur was able to assimilate into hundreds of Ralph clones. The clones then mention the word "friend" simultaneously (referring to their goal to have Vanellope) while crashing the Internet at the same time. Arthur would later morph the clones into a giant version of Ralph, in hopes of crashing the Internet and having Vanellope to itself. It even proved to be extremely strong as it was able to tear down buildings on the Internet, even easily capturing Ralph and almost killing him if Vanellope hadn't interfered.
Arthur entering Slaughter Race through its sewers.
Arthur on top of a building.
Arthur about to attack Slaughter Race after scanning Vanellope's insecurities.
Arthur escaping Slaughter Race before scanning Ralph's insecurities.
Arthur creating clones of Ralph after scanning his insecurities.
Arthur (through the clones of Ralph) going on a rampant search for Vanellope.
Several clones climbing a screen detailing a news report of Arthur causing chaos on the Internet.
Arthur (through the clones of Ralph) causing severe damage to the Internet.
The clones chasing Ralph, Vanellope and Yesss.
Arthur fusing the clones into itself to become Ralphzilla.
Arthur about to be attacked by an angry Ralph.
Arthur climbing Google Tower after kidnapping Vanellope.
Arthur is one of the rare sequel villains to actually appear in the Disney Animated Canon. The others are Percival C. McLeach from The Rescuers Down Under, the Firebird from Fantasia 2000 and King Runeard from Frozen II.
Additionally, Arthur is the first main antagonist of a Disney animated film to die since Turbo, not counting those who passed away off-screen.
Ironically, an antivirus program named B.E.V. was planned to be the main antagonist of the film, but she was cut from the film in favor of using Ralph's insecurities (in the form of Arthur) as the main antagonist.
However, B.E.V. also appears as the main antagonist of the theme park ride known as Ralph Breaks VR, as she intends to delete Ralph and Vanellope from the Internet, believing them to be imperfections.
Arthur's original voice actor (John DiMaggio) was known to briefly voice Beard Papa (a citizen of Sugar Rush during Turbo's reign) in the original film. Conversely, Turbo's voice actor (Alan Tudyk) voiced KnowsMore in the sequel.
The scene in which Arthur grabs Vanellope and climbs up Google Tower is reminiscent of King Kong, who served as an inspiration for Donkey Kong (whom Ralph in turn is based on), climbing up the Empire State Building while holding Ann Darrow.
Arthur serves as a lesson for Ralph in the movie, as both wanted Vanellope to be their friend. If Ralph hadn't let go of his insecurities and accepted Vanellope's decision of staying in Slaughter Race, he would've ended up like Arthur.