Teenage Mutant Ninja Turtles/Ghostbusters — IDW Publishing
Issue: #1 VACC.B
When a new invention goes haywire, the Turtles are sent to a whole new type of New York City. One with a whole lot more ghosts... and Ghostbusters! The two teams will have to learn to get along quickly, because a new foe from the Turtles past has followed them and aims to conquer NYC!
First appearances: Chi You
Creators: Bobby Curnow, Neil Uyetake, Dan Schoening, Luis Antonio Delgado, Ozzy Fernandez, Paris Alleyne, Adam Graham, Erik Burnham, Cory Smith, Tony Kordos, Kevin Eastman, Jerry Gaylord, Ronda Pattison, Matt Slay, Tom Waltz, Brent Peeples, Tristan Jones, Charles Paul Wilson III
Characters: Donatello, Leonardo, Michelangelo, Raphael, April O'Neil, Harold Lillja, Janine Melnitz, Kylie Griffin, Kitsune, Ray Stantz, Winston Zeddemore, Casey Jones, Egon Spengler, Krang, Chi You, Master Splinter, Peter Venkman, The Rat King