Egon Spengler does not have much social ability, as demonstrated by his stiff interactions with the Ghostbusters' secretary Janine Melnitz, and his reliance on Peter Venkman as spokesperson for the group. Spengler is the most serious and rigid member of the team. Of his hobbies, Spengler states that he collects "spores, molds, and fungus", and claims that, as a child, the only toy he ever had was "part of a Slinky", which he straightened out. As implied in the first movie, Spengler apparently is a sugar junkie, due to his affection for sweets and candy. According to the 2009 video game, Spengler
Egon Spengler character Dr. Jillian Holtzmann and Harold Ramis' character Dr. Egon Spengler created the film's proton packs. The paragraph accompanying the video read: "Engineers at Sony Corporation developed the 2016 Proton Pack™ in collaboration with nuclear engineer and munitions expert Dr. Jillian Holtzmann. Sony President and CEO Kazuo Hirai commented “The perfection of the Proton Pack™, long a dream of the world’s greatest engineers since first pioneered by" Dr. Egon Spengler "of Columbia University, is an example of Sony’s relentless pursuit of innovation. It absolutely delivers the wow factor that is so important to our company mission." Additionally, in the film,