The Cy-Bug Queen is the main antagonist and final boss of Wreck-it-Ralph: The Video Game. She is a robotic monster serving as the leader of the Cy-Bugs.
The Cy-Bugs hatch and immediately begin to attack Sugar Rush, eventually heading to Game Central Station. Vanellope and Calhoun evacuate with the other denizens while Ralph and Felix are given the task of destroying the bugs. Ralph and Felix journey off into Fix-It Felix Jr., Hero's Duty, and Sugar Rush to eradicate the bugs.
Eventually being led to Game Central Station, where they defeat the Cy-Bug Queen through the use of massive grappling guns. After the bugs are defeated, Ralph heads to Sugar Rush to celebrate the new holiday made by Vanellope, and then back to his own game.
- Although King Candy crowns himself the leader of the Cy-Bugs after being eaten by one by accident, the Cy-Bug queen does not appear in the movie until the events of "Wreck-It Ralph: The Video Game" as the main villain. However, the events tied to the game could be considered non-canonical.