Ghostbuster tech is Magic Powered Pseudo ScienceEven when people disbelieve in the ghosts; it should be easy enough to prove that their equipment does stuff. Each Ghostbuster wears an "unlicensed nuclear accelerator" on their back that can clearly and undoubtedly send out a stream of energy capable of intense physical damage. ....yet nobody else in their world seems capable of, or even interested in duplicating this technology. This is because they can't. It only works because Egon and Ray believe it works. (Peter and Winston don't care how it works, just that it does, so they don't interfere with the effect.) Any attempts to reproduce this effect would either just fizzle or explode.
The Stay Puft Marshmallow Company suffered a hit to its publicity due to its affiliation with an Eldritch AbominationAlternatively, it's new slogan became 'Now with 100% less world-destroying demon!'
Ghosts are required to keep Psychokinetic Energy (PKE) down. Trapping them unbalances the supernatural "ecosystem."
Vinz and Zuul are Punch Clock VillainsNeither seem particularly malicious (at least after they've possessed human hosts), and both seem fairly amicable and friendly. Vinz seems more like an excited puppy, intrigued by the human world and gushing excitedly about having destroyed previous inhabitants of earth. Zuul, on the other hand, was willing to sleep with Venkman as soon as he gave a (to us) very obvious lie about being affiliated with the Keymaster. Neither do anything significant or malicious between waiting to find each other (which Zuul takes no steps toward achieving other than waiting in bed for Vinz). It's possible that both very simply don't understand how humans work, and are just going about their jobs and are excited by the prospect of sleeping with each other.
Gozer massively depowered himself by taking the form of the Stay-Puft Marshmallow Man.Stay-Puft is the same thing in the Ghostbuster world as the Pillsbury Doughboy or Spongebob Squarepants is in ours. A world-wide symbol that children send positive emotions to. As the second movie proves, positive energy has a massive effect on ectoplasmic entities. Gozer was able to counter the massive energy sink and continue operating it as a projected Avatar; but it took a metric buttload to do so. Such that it was rather slow for a Giant Monster; it was beaten by just reversing the gate it came in through; and was outmatched by the villain in Ghostbusters: The Video Game.
Walter Peck really is a Gozer worshipperRemember he had a high PKE level in the Museum, even after he was slimed to remove possessors. The reason Ivo Shandor tied him up was that Ivo challenged Gozer to a fight; and Peck was, surprisingly enough, loyal even after Gozer was skinned and beheaded by Ivo.
Oscar Barrett will have a big part in Ghostbusters 3, if it gets made.Let's look at the facts - Mother was possesed by a fairly major demon, and he himself was nearly the vessel of an evil wizardy dude. He must have some sort of PKE madness running in his system. If the timeline of the movie remains constant, Oscar would be in his early twenties, the perfect age to strap on a proton pack.
Humans are required for Gozarians to use their powers.This is more or less stated by Gozer itself when it demands the humans choose its new destructor form at the end of the first movie. The Gozerian pantheon, while powerful, cannot use more than the most basic of their abilities without a human will to shape them. When it first appeared, Gozer made sure to show off to the Ghostbusters without killing them because it wanted their panicked minds to create a powerful form for it. This had some interesting results.
The "ghosts" are not actual ghosts.The Mood Slime reacts to thoughts and emotions, and shapes itself accordingly. All the ghosts, gods and monsters seen were drawn from the minds of those exposed to the ectoplasm.
The "Rookie" name tag was just a placeholder until the rookie could get the custom-ordered tag that bore his actual name.Presumably, the other Ghostbusters wouldn't have referred to him by name until the custom tag arrived, and the tag didn't arrive until they had defeated Ivo Shandor's plan.
Ghostbusters 3 will end with the Ghostbusters facing off with, and losing to, Heraclitus.They won't be able to cross the streams. World ends.
Gozer was responsible for the Bronze Age Collapse.The Bronze Age Collapse was a period of about 100 years between 1250 and 1150 BC during which nearly every major civilization of the ancient Near East was destroyed by some unknown cause. Some archaeologists chalk it up to Earthquakes, Volcanoes, Drought, or War. Those are kind of correct. The ancient Hittites summoned Gozer the Destructor and s/he annihilated civilization.
Looking directly into the trap has it steal your "soul"."Soul" as in emotions (or some emotions, based on how long you look at it). In the films, the only times Egon really shows any emotions is during a deleted scene when they are getting kicked out of the University (he grabs Venkman), which was prior to the trapping, and when he gets mad at Peck (clearly, his soul or some such was released when all the ghosts escaped, or the sudden surge of psychokinetic energy affected his behaviour). Similarly, some experiment (perhaps designing an early trap) prior to the first film did something to Venkman's soul, hence why he can look into the trap and why he never takes anything seriously.
Guesses on where the next office will be.
Walter Peck is a Sin-EaterThis could explain why he had such a high PKE level in the video game after he was no longer possessed. He died in the first movie after being buried under marshmallow and was brought back. The PKE meter was able to detect his Geist even after it had fused with him.
Willow Rosenberg from Buffy the Vampire Slayer is Egon's nieceThey're (maybe) both Jewish, (Egon Ambiguously so, Willow in an Informed kind of way) and we can assume Badass Bookworm is an inherited trait. In the video game Egon mentions a niece, and he's given a brother in the first movie novelization. Scientists and scholars run in Egon's family. Throw in some continuity from the cartoon, and the Spenglers have a couple of wizards in their family tree as well. So Willow is Egon's brother's daughter. Okay, so that leaves her with the wrong last name... but I could see her mom as the type to insist on keeping (and possibly passing down) her own surname name due to ideas on psychology/sociology/patriarchy/proper parenting.
Oscar is the Destructor.The Stay Puft Man was a decoy put on by Gozer to distract the city and confuse the Ghostbusters. The true choosers of the form were Vinz and Zuul, who chose a human form by possessing Louis and Dana then unlocking the gate with the key. Notice how, after the Gozer temple is destroyed, Dana and Louis become perfectly encases in easily-escaped shells that conveniently shielded them from the blast. Gozer did this on purpose. Since it involved incubating a powerful cosmic entity, the initial stages of Dana's pregnancy took years instead of weeks. Fortunately, she had a husband to attribute the pregnancy to at the time when it became more apparent. Oscar's presumably strong spiritual presence is what attracted the pink slime in the beginning of Ghostbusters II, even before Vigo chose him as his vessel.
The chosen Gozer-greeters for the Vuldruni and the Shubs and/or Zuuls chose their own versions of the Stay-Puft Marshmallow Man.Gozer appeared as a giant Slor, and a large and moving Torg. I'm guessing a slor is a type of small lizard that were kept as pets in the time of the Meketrex supplicants, and a torg is similar to a hibiscus plantnote .
The updated logo wasn't the first to be suggestedSince it's intended as a Take That against the authorities who shut them down, Venkman's original suggestion had the ghost giving the one-digit salute.
Vinz Clortho used to be a normal personThis is why he arguably seems more "human" than Zuul, and also quite possibly more insane. He was actually some other dimension's champion who attempted to fight Gozer, and to give him an eternal punishment Gozer transformed him into one of its heralds. Between being subjected to a glimpse of Gozer's true power and being forced to help destroy world after world, Vinz steadily lost sanity points, until he became the rambling, incoherent thing we see, who even then tries to find what good he can in Gozer's coming. "All prisoners will be released!"
Vinz Clortho is the demon dog equivalent of a socially awkward nerdWhen Dana gets possessed by Zuul she acts incredibly evil and demonic just as you'd expect, but when Lewis gets possessed by Vinz Clortho, he acts twice as goofy and dimwitted. Also notice Vinz's scenes before the possession, how many times has he stumbled into something, or crashed into something or some other sight gag—he has demonic Aspergers.
Zuul the demon dog that possesses Dana has a Species Surnamethe species that we call demon dogs are called the Zuuls? proof? "many shubs and zuuls knew what it was like to be roasted in the belly of a sloar that day"
The demon dogs take on some traits of the person they possessZuul changes into a sexy dress, while as a dog doesn't normally wear clothes, most probably doesn't understand the principle of sexyness, and doesn't need it in the first place (the Keymaster's coming anyway). Vinz on the other hand possesses a nerd and becomes a nerd himself.
The pink slime controls Vigo, not the other way around.We see the pink slime provoking paranormal activity all over town, but Vigo never states that he's in league with other supernatural forces, and his plan seems to be resuming a human reign over the world once he has Oscar's body, which wouldn't make sense if he had an army of ghostly monsters that could betray and kill him once he was made mortal again. Maybe Vigo is just arrogant and, being in a painting, has no clue what's going on outside the museum. The slime just re-animated the spirit within the painting, like it's been doing across the city.
Venkman's experiment at the beginning of Ghostbusters was actually working, and the "mood slime" in Ghostbusters II comes from human waste.
Egon, and only Egon, is a Time LordEver-popular meme done to death, I know, but I've put a bit of thought into this. Egon is a Chameleon Arched Time Lord who has lost his fob-watch and will never find it again. This is why we know so little about his background other than "[his] parents didn't believe in toys"—all his memories are facts and figures imposed upon him by the Arch. Ray and Peter simply dismiss his more unusual character aspects to his upbringing. His knowledge, advanced WAY beyond our realm, is the product of all his years at the Academy. As for the Ghostbusters technology, there is a "fork in the road" here: either he had a TARDIS and used it to build the Ecto-Containment Unit and other tech, or his level of knowledge is just that deep. He is especially adept at constructing high-tech equipment from common/household objects, another defining trait of renegade Time Lords. (This is doubly so for the Video Game, where the guys have seemingly anachronistic technology for 1991.) But the clincher is, in a way, Walter Peck. Peck is not an EPA agent, but a Celestial Intervention Agent sent to deal with Egon once the 'Busters really hit the big time (his manner is atypical for EPA agents, as discussed in other WMGs). After all, that knowledge can be very destructive if applied in just the right way. Unfortunately, Venkman doesn't take him seriously, and neither do the other guys (the trick only works on people who are normally cowed by authority figures). Peck fails and his superiors exile him to Earth, where he becomes an incompetent Inspector Javert figure to the Ghostbusters.
The ghosts in the containment unit will disintegrate over time
Ghostbusters 3 will take place on or be released in 2016
Ghostbusters takes place after the events of Puella Magi Madoka Magica.With Magical Girls now out the door as a universe energy source, the Incubators turned toward PKE. So one of them telepathically gave that morose architect the blueprints for the Gozer-summoning building, and another projected the image of Vigo into that one painter's mind.
On another, crueler note, the ghosts seen in Part 1 are actually Witches.
Venkman was actually running some variation of The Milgram ExperimentThe Milgram Experiment - When we see Venkman in the first movie "electrocuting" the guy who seems to be getting all the cards correct, that guy is actually an actor he hired to pretend to be shocked to see what the effects of authority and threat of being shocked would have on extra sensory perception. He had planned to run several actors through with the girl hopefully developing actual psychic powers in the long run.
Crossing the streams causes a Vacuum Metastability EventA vacuum metastability event is when spacetime quantum tunnels to a lower energy state, essentially collapsing in an outward spreading sphere that destroys everything as it grows. Egon's description of what happens when you cross the streams is a near perfect description of what happens. Also, theoretically, in real life, high energy particle collisions can actually trigger the event, so presumably in the Ghostbusters universe, when the streams interact, the high-energy particles within them collide violently, thus triggering "all life as you know it stopping instantaneously, and and every molecule in your body exploding at the speed of light". And when they crossed the streams inside the gate to Gozer's dimension, it devastated Gozer's unverse, but the vacuum collapse wave was unable to propagate through the gate, which is why the Ghostbusters' home universe wasn't destroyed.
Crossing the streams creates antimatter.My head-canon for Ghostbusters always interpreted the "all life as you know it..." referencing what happens when you are caught in a stream-crossing explosion, rather than the entire universe suffering the damage. It wasn't until later in life that I learned what real-life particle colliders are used for—generating antimatter. Given the proton packs are able to generate massive amounts of positively-charged particles despite their tiny size, you could extrapolate that if you would cross (or "collide") the streams you would generate antimatter at an alarmingly fast rate. Thus the Gozerian temple is obliterated by a titanic antimatter explosion and the cross-stream governer in the video game cuts off when the motherboard detects the presence of antimatter along the stream path. Cutting it off inevitably creates a tiny explosion when the antimatter reacts with local matter, but substantially less so than letting it propagate normally. (Yes, this is taking a few liberties with how antimatter and particle collision works, but...)
Ray Stantz has Aspergers syndromeDan Aykroyd is said to have mild Aspergers, and he's never made it a secret that Ray was largely based on him. This troper has Aspergers, as do several of my close friends, and Ray's speech patterns, behaviour (Seen as odd even by Egon), and total obsession on one particular topic (The Supernatural) is very very typical of someone with the syndrome, especially in the movies and comics. Ray's parents coddled and spoiled him as a child, but didn't seem to think of him as very capable despite him having a genius level IQ, and his siblings both hate him; the reason his brother hates him is given as him being against the paranormal, but his far more open minded sister is never given a reason for disliking Ray, so perhaps they both resent the special attention their parents gave to him growing up. Ray was born in a time when Aspergers and Autism were both still very misunderstood conditions, and the parents of the sufferers were often accused of causing the child's condition because they didn't love them enough, so Ray's parents responded to this by showing favouritism to Ray to try and "cure" him.