Ghostbusters PSP

The game is a third-person shooter, placing players in the role of an original character simply known as "Rookie" (also called "Rook", "Newbie" and similar names by the Ghostbusters), a new recruit to the Ghostbusters team. Players control Rookie's movements as he explores the environments of each level, seeking out paranormal activities and ghosts, either alone or with up to all four of the other Ghostbusters. Players can switch to a first-person perspective by equipping the Rookie with the PKE Meter and goggles. In this mode, paranormal items are highlighted and the PKE Meter will help direct players to ghosts or haunted artifacts. Players can scan these elements to gain more information about them and receive a monetary reward. Weapons cannot be used in this mode.

Outside of the first-person view, players can aim and fire the Proton Stream to weaken ghosts so they can be captured in a ghost trap. However, continuous use of the pack will cause it to overheat. The pack can be manually vented to cool it down and keep it from shorting out and reseting. While the pack is overheated or being vented, players will momentarily be unable to use the pack's weapons. Once a ghost is weak enough, players can switch to the Capture Stream to maneuver the ghost into a ghost trap. With a ghost in the Capture Stream, players can also execute a "slam" attack to force it against a hard surface, weakening it further and making it easier to trap the ghost. The Capture stream can also be used to move objects in the environment