cross-dimension portal (a tactic which is referred to as the "Gozer gambit" by Ray) and should only be used as a last resort. During the game's climax, the Ghostbusters are pulled into Ivo Shandor's ghostly realm and come face-to-face with Shandor's Destructor form, forcing them to resort to "crossing the streams" to defeat Shandor. The resulting blast not only destroys Shandor but also sends the team flying back to their dimension. During gameplay, it is possible for the player to cross the streams with another Ghostbuster, but this will only cause a burst of energy to travel down the stream and deal a massive amount of damage to the player, also knocking them off their feet for a short time, due to a new "safety" that was installed on the neutrona wand. In the extended version of the reboot film Ghostbusters (2016), shows that its iteration of the Ghostbusters (Abby Yates, Erin Gilbert, Jillian Holtzman, and Patty Tolan) had initially tried to close Rowan North's portal with their crossed streams before resorting to use their Ecto-1's reactor to detonate an explosion that create the total protonic reversal powerful enough to seal it. In Ghostbusters: Afterlife, Egon built proton cannons with the parts of the proton packs and a PKE meter in Summerville, Oklahoma, to keep Gozer's portal closed with safely fired crossed streams. Later, the Ghostbusters again crossing their proton streams against Gozer to counter its energy-based powers and to weaken its physical form, allowing them to capture the deity in their 198 ghost traps. In Ghostbusters: The Video Game The game features a modified version of the proton pack (an experimental prototype) which is given to the player (the Ghostbuster's new experimental equipment technician/guinea pig) for field testing. This new proton pack is equipped with other features (and upgrades) besides the standard proton stream. As props in the real world The props representing proton packs were originally thought to have been made by the prop department of Columbia Pictures. Recent information coming from the auction of a hero proton pack in July 2012 revealed that the hero proton packs could have been made by Boss Film Studios, a prop studio started by ILM veteran Richard Edlund. They are made of molded fiberglass shells on aluminium backplates (or "motherboards") bolted to military surplus A.L.I.C.E. frames. The basic shape was sculpted from foam; later, a rubber mold was made of it,