judge Stephen Wexler inadvertently released the ghosts of the Scoleri Brothers; two murderers he sentenced to death by the electric chair. During the chaos judge Wexler dismisses the charges against the Ghostbusters, and rescinds the judicial restraining order allowing Egon, Ray, and Peter to capture the ghosts, effectively putting the Ghostbusters back in business. Egon had a dry sense of humor, of which he used on Peter to bewilder him, and smirked at his friend's cluelessness on what the word "epididymis" was. Egon primarily worked with Ray, both of whom were still living at the Firehouse, conducting research on the pink slime, eventually they developed "slime blowers", consisting of large metal tanks and handheld nozzles that fire positively charged substance. Still very scientifically minded, Egon seems to have loosened up a little bit, letting his sense of humor show and even giving Dana a smile and Peter (who was carried away with photographing Vigo's portrait), a knowing smile. It is implied by Peter that two years prior to the film's events, the team had used their proton packs. Not limited to John H. Tobin's books, Egon and Ray rely on the latter's resources from Ray's Occult Books and through Leon Zundinger's article from Magicians, Martyrs and Madmen that they found information about Vigo the Carpathian. Ghostbusters (2016) Although the 2016 Ghostbusters film is a reboot, the film's marketing confirms that a version of Egon Spengler does exist in the film's fictional universe. According to a tie-in video to the film, Kate McKinnon's 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 itself, a bronze bust of Harold Ramis as the film's version of Spengler is seen just as Erin Gilbert leaves her office. During the credits of Ghostbusters, the words "For Harold Ramis" are seen. Ghostbusters: Afterlife (2021) Ghostbusters: Afterlife, which serves as a direct sequel to the original