Collect artifacts and scan ghosts to earn "extra pay," which you can spend in the menu to upgrade your equipment, like getting a faster ghost trap or the "Slam Dunk" technique.

Busting ghosts on PC is a blast, especially since this game is often called the "third movie" because it features the original cast and a script by Dan Aykroyd and Harold Ramis.

Toggle these to find hidden ghosts (red signal), environmental anomalies (green), or collectible cursed artifacts (blue).

You don't just "shoot" ghosts; you have to weaken them with your proton stream, wrangle them into a capture stream, and then physically slam them into the floor or walls to stun them before throwing a trap.