Turbo is the main antagonist of the 2012 Disney film Wreck-It Ralph. Originally the main character in his own game called TurboTime, his envy of another game resulted in him getting both games unplugged, so he moved to the game Sugar Rush.
King Candy: King of All That's Sweet
All hail King Candy, ruler of the race track, captain of confectionery, sovereign of sugar. Not surprisingly, the most powerful figure in the Sugar Rush game is also the best racer on the track. He may look noble enough, but don't be fooled, this mysterious monarch rules his kingdom with a sugary fist and he is determined to keep his kingdom safe from glitches, rabble-rousers and outsiders. Don't expect him to go easy on Ralph and Vanellope. The King is ably assisted by his strong-arming donuts, Wynnchel and Duncan, and his diminutive henchman Sour Bill, a tiny little ball of unsweetness.
Turbo was originally the main character in his own racing videogame called TurboTime. Soon enough, another game called RoadBlasters was made and people began to play that game more often than Turbos. Fueled by jealousy, Turbo entered the game to try and sabotage it, but ended up getting both games unplugged. Still alive, Turbo then entered a different racing game called Sugar Rush, and he reprogrammed the game and made the games true leader, Vanellope von Schweetz, a glitch so he could rule the game instead.
Role in Wreck-It Ralph
King Candy first appears announcing to the citizens of Sugar Rush that whoever wins the race will represent Sugar Rush and that the racers, led by Taffyta Muttonfudge, have to deposit a gold coin to race. King Candy deposits his first, and the other racers follow. Vanellope von Schweetz disguises herself and blends in with the other racers and deposits a medal she took from Wreck-It Ralph, thinking it was a coin. King Candy notices her and is suspicious, since he hasn't seen that racer before. Vanellope accidently takes off her disguise and a surprised King Candy calls the cops Wynnchel and Duncan to arrest her. Vanellope runs to her racing kart that has been uncovered by Taffyta. As she almost reaches it, Wreck-It Ralph, covered in taffy, chases Vanellope to get his medal and she escapes while Ralph is captured. The other racers follow Vanellope to get her while King Candy orders his henchman Sour Bill to keep her from racing. King Candy brings Wreck-It Ralph into his palace and Sour Bill pulls the taffy off his face, letting him know it is Ralph. King Candy instantly suspects that Ralph has "gone Turbo" and, after discovering that Vanellope used Ralph's medal, he orders his henchmen to return Ralph to his game and threatens to imprison him in his "fungeon" if he returns, and Ralph responds by calling him "scary, but not cool". Candy soon leaves to search for Vanellope. Ralph, however, escapes and also saves Vanellope from getting captured by the racers.
King Candy is warned that Vanellope has been sighted baking a racing kart after her first one was destroyed by the racers since her first-ever kart was stolen by him. He and the cops burst in and find that Ralph is with her. Since Vanellope doesn't know how to drive, Ralph has to distract Candy by throwing candy at him and he and Vanellope drive off, followed by Candy. Ralph and Vanellope drive to the diet cola mountain and they drive through a secret opening. King Candy finds they disappeared and orders Wynchel and Duncan to find Vanellope and destroy her kart. After this happens, Fix-It Felix, the hero from Fix-It Felix, Jr., which is the game Ralph is from, reveals Turbo's past to Sergeant Calhoun, the hero from Hero's Duty. Wynchel and Duncan fail to find Vanellope and Ralph and King Candy orders them to leave. With little options left, King Candy decides to take matters into his own hands and enters the games codes to retrieve Ralph's medal and puts Sour Bill in charge of the kingdom until he returns. He finds Ralph alone, after Vanellope quickly left to get something. Ralph attacks King Candy but relents when Candy reveals he has the medal and tells Ralph that the reason he and the other racers won't let Vanellope race is because they are trying to protect her and explains that if she wins the race, she will be chosen as the Sugar Rush avatar, but when the gamers see her glitching they'll think the game's broken and Sugar Rush will be unplugged, leaving it's inhabitant homeless, but because Vanellope is a glitch, she cannot leave her game and will die when the game is unplugged. Ralph believes King Candy, but he quickly forgets about what he was doing after Vanellope gave him her homemade medal. This causes an argument between the two about the deal of getting the medal back being broken, leading Ralph and Vanellope to sadly part ways. Vanellope goes off to race on her own while Ralph heads back to "Fix-It Felix Jr." After Ralph's departure, King Candy stops her, and asks her a series of questions, to which Vanellope responds by repeatly saying "no" and at one point saying "I don't know". Angered that Ralph didn't listen to him, Vanellope also didn't listen to Ralph just like she didn't listen to him (King Candy) years ago, Ralph didn't say to her that she can't be a racer, and that Ralph didn't destroy her kart, King Candy then asks Vanellope where she's going, and she responds by telling him that she's on her way to the race, and tells him to get out of her way after King Candy once again won't allow Vanellope to race. She fights King Candy by pinning him to the ground and repeatly punching his face, but he manages to fling her away with his feet. Vanellope gets up, and tries to fight King Candy again, but he grabs her by her hoodie and calms her down. King Candy then tells her that he has a precious surprise for her. He then takes her to his castle, laughing maniacally while Wynchel and Duncan appear from nowhere and destroy her kart.As for Ralph, he arrives at his game, where he finds the Nicelanders have left. Ralph throws the medal at the game screen, and the poster covering it falls down, allowing Ralph to see a picture of Vanellope on the side of the game console. Returning to Sugar Rush, Ralph tortures Sour Bill into admitting the truth. Vanellope was in fact a racer until King Candy tried to delete her code, which is why she is a glitch, and he locked everyone's memories so they don't remember. Sour Bill also reveals that if Vanellope crosses the finish line, then the game will reset and Vanellope won't be a glitch anymore. At the Random Roster Race, Vanellope appears to not be in the race anymore, much to King Candy's delight. The race starts, and Taffyta passes King Candy. During the race, Vanellope is freed from prison and her kart is fixed by Felix, and she re-enters the race. By the time she enters, King Candy has taken three racers, Gloyd Orangeboar, Snowanna Rainbeau, and Adorabeezle Winterpop, out of the race by hitting them with Sweet Seekers. After Vanellope evades Taffyta and passes her, King Candy sees her pass him. Following her, he hits her kart with his kart and both become stuck together. Still driving, King Candy takes a car part and tries to hit Vanellope with it. During the fight, the Cy-Bugs attack and the racers and Sugar Rush audience retreat to Game Central Station. While King Candy is trying to hit Vanellope with the car part, Vanellope grabs it and glitches, and this caused King Candy to revert to his true form as Turbo, much to Ralph, Vanellope, and Felix's shock. Turbo reveals he reprogrammed Sugar Rush and tries to kill Vanellope, but she glitches away and Turbo drives after her but a Cy-Bug jumps in front of him and Turbo drives right into the Cy-Bug's waiting jaws. However, Turbo fuses with the Cy-Bug and becomes more powerful than before and more power-hungry, now seeking to take over the arcade. Ralph tries to erupt the volcano by punching it repeatedly, but before he can hit it one more time which will erupt the volcano, Turbo confronts him. Now more powerful than Ralph, Turbo pins Ralph, attempting to strangle him. Vanellope tries to save Ralph, but Turbo swats her away (accidentally letting Ralph go), causing her to fall back and land between Felix and Calhoun, greatly injuring her. As Turbo ridicules Vanellope and Ralph, the Cy-Bugs appear to kill the injured Vanellope. This angers Ralph, and, although Turbo is still more powerful than him, he manages to gain the upper hand on Turbo, repeatly punching him in the face and dodging all of Turbo's attacks. Ralph eventually defeats him by jumping on his head. He then rockets into the sky before falling back down and colliding with the volcano, erupting it. Vanellope gets healed by Felix and manages to glitch away from the Cy-Bugs. She then rescues Ralph while the Cy-Bugs, who are attracted to the light, fly into the volcano. Turbo tries to resist but his Cy-Bug programming is too powerful and he also flies to the volcano. As he is close to the volcano, he morphs back into Turbo and screams as he flies into the volcano and is destroyed. And if someone dies in a game that is not their own, they are gone permanently, so Turbo is gone for good.
From what is known of Turbo, he likes being center of attention. His hunger for attention is what drove him to be evil, getting two games, including his own, shut down.