Turbo

Turbo (or King Candy), is the main antagonist from the 2012 Disney movie Wreck-It Ralph!

Beginnings
Turbo is the former ruler of a video-game called "Turbo-Time". When a fancier video-game called "RoadBlasters" came in and stole Turbo's thunder, he grew jealous! He took the game for himself and put both Turbo-Time, RoadBlasters, and presumably himself out of order for good. Turns out, Turbo survived, disguised himself as a character called King Candy and reprogrammed a 1997 racing game, "Sugar Rush", to make his alter-ego the lead character.

Sugar Rush
For the time, King Candy portrayed himself as the benevolent lead character and always gave sweets to its people! He was the character with the best stats, specially in speed and he was always selected by default. The speedster monarch was specially afraid of Vanellope regaining her place as a racer!

Ratchet & Clank: Twinsanity
Turbo grew bored here in Sugar Rush and saw what it's like in the outside world, thereby abandoning Sugar Rush! Somehow, he was the only video-game character to set foot in Jasper, Nevada, where he was encountered by a group of Vehicons. 2 hours later, he escaped and met up with a teenage girl named Evette (also known as Sierra's friend) and had sex with her! Turbo started glitching into his alter-ego King Candy and was devoured by an Insecticon! Evette watched the horror of Turbo respawning inside the Insecticon and fused together with his King Candy persona still intact! He destroyed all of Jasper, Nevada, while Evette and Sierra were forced to leave their home town in search of somewhere where they can live peacefully.