The Grocery Specter was a ghost that haunted the Grocery Delicatessan supermarket.
The Grocery Specter terrorized patrons at the market and created a mess. When the Ghostbusters and Slimer arrived, it threw produce at them. It was easily busted by the Ghostbusters, but with a trap that Slimer accidentally broke and didn't tell the Ghostbusters about. Because the trap was broken, the ectoplasmic essence of the ghost started leaking out and possessing various inanimate objects, including the Containment Unit. The essence followed the Ghostbusters in an effort to reassemble itself.  Eventually, all of the objects possessed by the essence of the ghost were cleansed of the ectoplasmic matter with blasts of Proton Streams.
- Elephant ride outside of supermarket
- Parking Meter
- Vending Machine
- Equipment at a construction site
- Janine's typewriter, staplers, and desk
- Coat Rack
- Water Jug
- Egon's lab equipment
- A broom from the Firehouse's basement
- Containment Unit
- ↑ Eatock, James and Mangels, Andy (2009). The Real Ghostbusters Complete Collection Booklet, p. 35. CPT Holdings, Inc. Line reads: "Ron Green guest stars as the voice of the Meter."
- ↑ Egon Spengler (2009). The Real Ghostbusters - "Loose Screws" (1989) (DVD ts. 24:17-24:28). Time Life Entertainment. Egon says: "Elements of the ghost we caught at the store leaked out of the faulty trap. And when we brought the Trap back here, parts of the spirit's essence affected all of this and followed us home in an effort to reassemble itself."