Mass Hysteria is the main expansion page tied to Ghostbusters: The Board Game. It was not a stand-alone game. It collects the harder-to-find deluxe extras that expanded the first Cryptozoic box.
The name comes straight from the movie quote, but the practical point is simpler than the branding: this was the expanded version of the first game, with extra pieces and upgraded content built around the main box.
What Mass Hysteria added
BoardGameGeek’s expansion entry and other surviving product descriptions tie Mass Hysteria to a short list of extras rather than a full second game. The package is commonly described as including the Sandman ghost miniature and card, an oversized Angry Stay Puft “Impossible Mode” boss figure and card, four exclusive double-sided board tiles, glow-in-the-dark dice, and upgraded deluxe packaging.
Those extras matter because they change the feel of the set. Instead of only adding one small promo, Mass Hysteria pushed the first game further into collector and expansion territory, with bigger pieces, extra scenario material, and a more elaborate physical package.
How it fits the first game
The first Cryptozoic game already leaned hard on modular boards, miniatures, and mission-style play. Mass Hysteria sits on top of that foundation. If you are mapping the line, treat it as the first game’s main expansion page rather than a separate stand-alone title.
For the main game page, go back to Ghostbusters: The Board Game. For rulebook links and setup references, see Instructions for Ghostbusters: The Board Game.
Related pages
Source note
Summary details on this page are based on the BoardGameGeek Mass Hysteria entry, archived product descriptions and collector-sale listings for the set, and broader first-game context from the main Cryptozoic product page and the base-game BoardGameGeek listing.