Driver: Parallel Lines takes place in an entirely open world environment, in which mini-games are now accessed from the in-game world instead of from a menu, while the game also features some new elements that are common with Grand Theft Auto - visible blood when someone is shot, an "Auto-aim" feature (with manual aim also available), a money system, fully modifiable vehicles (with a test track to test out upgraded vehicles), and environment destruction (i.e., lamp posts can now be run over and fire hydrants can break, spewing water into the air). A new felony system is incorporated in Parallel Lines, which can differentiate between personal felony and felony "attached" to vehicles the player has used. If the player attracts police attention on foot or in a certain vehicle, the player can suspend their wanted level by losing the police and entering a "clean" car, though it can be reactivated if they spend too much time in the sight of a police officer, who will eventually recognize the player as "wanted". The same principle applies to out-of-car activities such as weapon use, in which players can holster their weapon in order to lose police attention until spotted committing illegal acts again. For the Wii version, the felony bar is replaced with a "stars" system, similar to that of Grand Theft Auto, which light up when the player attracts police attention. Like Grand Theft Auto, the game features fictional, yet distinct styles of vehicles based upon real automobiles that were in use within New York between the two periods. The game was originally intended to include online multiplayer, but this was scrapped when it became apparent to the developers that they could not deliver a strong multiplayer mode[3] and wanted to focus entirely on the single-player portion of the game. The control layout differs slightly from Driv3r in that swimming and jumping abilities were removed from the game, along with a separate control to do "burnouts". While this was practical on the pressure-sensitive buttons of the PS2 controller, it meant that if the game was played using a PC keyboard to drive vehicles, most of them would constantly do a burnout when accelerating at low speeds and thus reduce control. The instant replay film director mode of previous Driver games was also removed, with the only available cinematic mode being the fixed-perspective slow-motion "Thrill Camera". The game's appearance changes significantly between 1978 and 2006. Not only does TK's appearance change from his 1970s look to a more modern appearance in 2006, but also weapons, pedestrians and vehicles. Vehicles stored in the garage from 1978 can be used in the 2006 era and vice versa, while modifications are more expensive in the modern era than in 1978. New York's scenery changes quite significantly in places, with Times Square's lights and commercial posts changing to reflect the era they are in. While the 1978 World Trade Center appears, in 2006 it's a cleared and closed site. In addition, the New York of 1978 has a rather sepia tone to it, whereas in 2006 the sky has been blue-tinted. The game's HUD, which is updated from that of Driv3r featuring a speedometer, a nitrous oxide meter, and an odometer displaying how many miles the player has driven in-game also changes in appearance, from a chrome style to an LED look. While the players can change between eras manually, it can only be done after completing the 32 missions of the story mode and unlocking the "Era Change" option. While the game completely lacks any kind of weather, it does retain a day-to-night cycle that provides notable atmospheric changes
