PSP Game Ghostbusters - The Video Game

The game is a third-person shooter, placing players in the role of a new recruit to the Ghostbusters team known as "the Rookie" (also called "Rook", "Newbie", "Cadet", "New Guy", "Green Horn", and similar names), taking over a previous fifth member's (implying was Louis Tully) position. 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 helps 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.​

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In the third-person view, players can aim and fire a Proton Stream to weaken ghosts, allowing them to be captured in a ghost trap. Continuous use of the Proton Pack causes it to overheat, but it can be manually vented to cool it down and to keep it from shorting out and resetting. While the pack is overheated or being vented, players are momentarily 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. When a ghost is in the Capture Stream, players can also execute a "slam" attack to force it against a hard surface, further weakening the ghost and making it easier to trap. The Capture Stream can also be used to move objects in the environment.​