Necrotic Slime [1] (also known as Ionized Necrotic Material and Ionized Necrotic Matter) [2] [3] is a caustic substance used by Britt to turn living organisms into Zombies.


The Ghostbusters discovered the presence of Necrotic Slime after blasting two Zombies. Realizing it turned things into Zombies, the team strips off their slime drenched uniforms as a precaution. Egon Spengler rigged a Zombie radar to detect the entities based on some Necrotic Slime he saved. The slime could be neutralized when a zombie is possessed by a new type of poltergeist. The true purpose was to use the Zombies' Necrotic Slime to infect Gozer's essence in a bid to steal a fraction of it. [4] Britt decided to leave some Necrotic Slime in Newark, New Jersey.


The slime turns living organisms it touches into zombies through a process known as "hastened ectoplasmic migration from a corporeal form." That is, the soul leaves the body. For an adult male, it took about two days for this process. For a stray cat, it was nearly instantaneous. Egon is able to readjust the P.K.E. Meter to detect the slime.



IDW Comics


  1. Egon Spengler (2011). IDW Comics- "Ghostbusters: Infestation Issue #2" (2011) (Comic p.11). Egon says: "Even if we did, that would result in a veritable monsoon of Necrotic Slime raining own on Manhattan."
  2. Egon Spengler (2011). IDW Comics- "Ghostbusters: Infestation Issue #1" (2011) (Comic p.12). Egon says: "Of a sort. I expect that there is a correlation between the ionized necrotic material that cat was covered in and --"
  3. Egon Spengler (2011). IDW Comics- "Ghostbusters: Infestation Issue #1" (2011) (Comic p.20). Egon says: "I saved some of the ionized necrotic matter and --"
  4. Egon Spengler (2011). IDW Comics- "Ghostbusters: Infestation Issue #2" (2011) (Comic p.17). Egon says: "My preference, of course, is that if -- or, when -- that occurs there's no Necrotic Slime left in play to reinfect Gozer's essence and put us back at square one."
  5. Egon Spengler (2011). IDW Comics- "Ghostbusters: Infestation Issue #1" (2011) (Comic p.13). Egon says: "Well, the black slime that the creature's innards were composed of was easily incinerated by our Proton Packs, and it didn't seem to be aggressive until its spirit fully dissipated."
  6. Peter Venkman (2011). IDW Comics- "Ghostbusters: Infestation Issue #1" (2011) (Comic p.20). Peter says: "You saved some black slime?"

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