Boo York is a thriving city populated with ghosts instead of humans and is home to the Peoplebusters. The Statue of Liberty is replaced with that of a witch and the city looks more like a giant demilitarized zone. The Ghostbusters, minus Winston Zeddemore, traveled to Boo York after they were sucked into the Central Park Twister.
- On the Regular Cover of Ghostbusters International #11, in the bottom right, Boo York is referenced.
- Ray Stantz (2009). The Real Ghostbusters - "Flip Side" (1988) (DVD ts. 09:21-09:24). Time Life Entertainment. Ray says: "Welcome to Boo York, the Big Pumpkin."
- Egon Spengler (2009). The Real Ghostbusters - "Flip Side" (1988) (DVD ts. 09:27-09:31). Time Life Entertainment. Egon says: "We are in some sort of flip side world. A ghost version of New York City."