~ 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 a insecurity computer virus that was made to duplicate and spread throughout everywhere that is to be infected.
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) traveled to the Internet through a Wi-Fi router, where they made a purchase of a new steering wheel that will save the game, and that they have 24 hours to come up with the money to complete the purchase. To that end, Ralph posted several videos of himself to get on the top trends to earn some money.
However, Vanellope take 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 returning back to her old game. Desperate not to lose her as his friend, 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 warned 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 didn't 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 up her friendship with him as a result, much to his discomfort. 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 duplicated 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 the help from Vanellope, KnowsMore and Yesss).
Unfortunately, Arthur caught 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 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 could 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 touched 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.
In its normal form, Arthur resembles a black leech-like creature with a large glowing eye. After revealing its secondary form, 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 became more ruthless as it scourged 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 nothing else.
However, Vanellope's gesture of friendship along with Ralph convincing to let Vanellope go free is what convinced 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 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.
Powers and Abilities
As a computer virus, Arthur was able to scan any living object for any weakness that it can exploit and spread out to wreak havoc. Thus 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 as 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 trying to kill him if Vanellope hadn't interfered.
Arthur entering Slaughter Race through its sewers.
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 Ralph's 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 in 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 and Firebird from Fantasia 2000.
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 appeared as the main antagonist of the new 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 Papa Beard (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 in the area is reminiscent to that of King Kong, who served as an inspiration for Donkey Kong (which Ralph is based on).