During the Ghost Invasion, some of the stronger ghosts from to Times Square organized at 43rd Street and Broadway to repel the Ghostbusters. During the battle, the Ghostbusters battled with their Proton Sidearms the ghosts. The ghosts also got assisted by previously established ghosts: Gertrude Aldridge, Electrocuted Ghost, and Mayhem.
- Ring Leader Ghost
- Tall Pilgrim
- On July 15, 2016, Luci Romberg posted a photo of her with Melissa McCarthy doing splits on the Times Square set surrounded by the actors portraying the ghosts. 
- On September 8, 2016, Kyle Brown posted concept art for three ghosts - a Butcher Ghost, a Hare Krishna Ghost, and an Afro Ghost. 
- The ghosts are basically the people who died in various eras in the last few hundred years. 
- Press invited to the set described extras dressed as Pilgrims, old-timey sailors, Revolutionary War Redcoat spirits, a couple of zoot-suited gangsters, 1970s pimps and hookers, hippies, Civil War soldiers from the North and South, vaudeville performers, and the Victorian-era upper class.   
- The first ghost fought was inspired by Bowery Boys leader, William "Bill the Butcher" Poole. 
- In an earlier version of the script, the battle was a much smaller fight involving Prohibition Era ghosts. 
- The VFX team had to maintain complexity and multi-layered facets to the ghosts such as their auras, the smoke, the Proton Streams, and contact lighting interactions. The team also added additional sparks, dust, reflections, shadows, and flares. 
- There were originally a lot more ghosts but they just standing around while on three at a time attacked the Ghostbusters. It was decided the logic was off and the extra ghosts were relegated to a fog from which the ghosts energize out of. 
- The fight was going to be four and a half minutes long. Sony didn't want to pay for all of it because the VFX required was expensive. The scene was done to AC/DC's "Shoot the Thrill" but Teddy Shapiro added a score instead. 
- ↑ Luci Romberg instagram 7/15/16
- ↑ Art Station Kyle Brown "Ghostbusters (2016) Ghost designs" 9/8/16
- ↑ fxguide "Who you gonna call? Call Illoura, MPC, SPI, & Zero VFX" 8/10/16 Line reads: "In the new version of the script, the girls fight a complete array of ghosts from many different eras. It was "basically anyone who died in New York in the last few hundred years," explained Daniel Kramer who headed the team at Sony Pictures Imageworks (SPI) that completed the fight."
- ↑ "The new Ghostbusters will be facing some all-time bad guys" Entertainment Weekly 12/29/15
- ↑ IGN "What we learned on the set of the Ghostbusters Reboot" (2 pages) 4/28/16
- ↑ The Verge "I Visited the Set of Ghostbusters" 4/28/16
- ↑ Comic Book "Ghostbusters VFX Breakdown & Times Square Ghosts Concept Art" 8/27/16 Line reads: "As for the concept art, which was illustrated by Kyle Brown, it features designs for a couple of the Times Square Ghosts. Brown wrote, "The idea was that Ghosts from all of New York's history populate Time Square for the final act." The first ghost was inspired by Bowery Boys leader, William Poole (a.k.a. Bill the Butcher); however, you probably identify him as Daniel Day-Lewis's William "Bill the Butcher" Cutting, the character that was based on Poole in Martin Scorsese's 2002 film Gangs of New York. As for the second ghost, it is of a New York flasher exposing himself. Brown tried several variations, but director Paul Feig went with a less risqué version. Brown shared, "The Flasher does show up for a split second, sans some more questionable features."."
- ↑ fxguide "Who you gonna call? Call Illoura, MPC, SPI, & Zero VFX" 8/10/16 Line reads: "Fieg ended up replacing a much smaller fight that had been scripted with some prohibition-era ghosts with the new much more dynamic hand to hand combat scene."
- ↑ fxguide "Who you gonna call? Call Illoura, MPC, SPI, & Zero VFX" 8/10/16 Line reads: "All the ghosts were complex and multilayered. They react to the environment and have their own emanations which manifested as an almost bioluminescence aura around them. In addition to this, the sequence had a large amount of smoke and the very strong light sources of the proton beams and contact lighting interacting between them. Each ghost had both an external presence or form as well as glowing internal skeletons or light sources that come and went during the shot. On top of all of this the team added additional sparks, dust, reflections, shadows and flares to make up a final shot."
- ↑ EMPIRE Online "Empire Podcast: Ghostbusters Spoiler Special with Paul Feig" 28:49-29:27 7/27/16 Paul Feig says: "We had in that fight, we had a ton of extras that were dressed in amazing period clothes and everything but what happened was when we're putting it together, we realized we had the situation where as an audience, it was that thing when you're watching a Kung Fu movie and guys are surrounded by a bunch of guys but only three go in at a time. Why don't they all run in and wipe them out? So we're going, 'Actually, it does look weird they're standing there...' so we created more of that smoke where they just energize out of the fog which I think is just a cool idea so we brainstormed that as we put together the VFX."
- ↑ EMPIRE Online "Empire Podcast: Ghostbusters Spoiler Special with Paul Feig" 29:58-30:25 7/27/16 Paul Feig says: "My only regret is that we couldn't do the longer version of it. We just... the studio didn't want to pay. The cost... it was a very expensive scene to do the VFX for but the original fight was about four and a half minutes long. It was also done to AC/DC's "Shoot the Thrill" which was, that was my favorite version of the y'know it was crazy then Teddy Shapiro went in and did that amazing score for when Holtzmann's running the gauntlet with her pistols."