In addition to the game's story mode, "Mirror's Edge" features a time trial mode where the player must complete courses as fast as possible. Each course is divided into multiple sections and has three qualifying times to beat. Although the first courses are unlocked as the player progresses through the story mode, additional courses can be unlocked by beating qualifying times. Records can be uploaded to online leaderboards, where the player can compare their performance with others. The player may also download recordings of other players, called Ghosts, to show them the path they took through a course and help them improve their records. Additional achievements can be unlocked by reaching certain milestones.