Need for Speed: Underground 2 is the ninth instalment in the Need for Speed series and is a sequel to Need for Speed: Underground. It is the first Need for Speed title to include free roam and is based in Bayview, a fictional city. Players are able to enter either the career mode or Quick Race mode in the game. Career mode will see players completing races and tuning their vehicles as they advance through the game. Careers are split in five levels with each seeing an increase in difficulty. Players will be able to enter a new district of Bayview as they advance through the game alongside new parts and vehicles. The Quick Race mode allows the player to create their own races with different options. Players can use vehicles they have created in My Cars as well as any vehicles from their career. More tracks, cars and parts will be unlocked in Quick Race Mode as the player progresses through the career mode. Players can drive around the city of Bayview but only during night time. Bayview is divided into five districts with different aesthetics and roads within each. Players can visit Tuning Shops, Car Lots, and race events seen around the entire city. Player can use a GPS to help navigate around the city. Players can find money rewards and unmarked race events in some areas of Bayview. Players will also compete in Outrun events with AI street racers that randomly appear on the streets of Bayview.