Some TMNT stuff really isn't for little kids.
- Authors: Erik Burnham, Tom Waltz
- Artist: Dan Schoening
- Colorist: Luis Antonio Delgado
- Cover Artists: Dan Schoening, Dave Wachter
The two beloved franchises reunite for a new adventure more action-packed and hilarious than ever! The Turtles are stuck in a ghost dimension by an old adversary and only the Ghostbusters can save them. The ensuing adventure will be an inter-dimensional romp like never seen before!
A woman is walking down the street when she accidentally steps in a large blue spectral creature, which is about to attack her when Ray and Winston intervene, spraying them both with concentrated mood slime and sucking the ghost into the trap. On the way home they and Venkman discuss different dimensions and the "insulation" between them.
In a ghostly wasteland, the spirit of Darius Dun rages about Splinter's success with the Foot Clan, enraged that the mutant rat has taken his "legacy." His friend Bronson reluctantly tells him of beings that travel between dimensions, hunting and capturing beings. He warns Dun that there is a terrible price for summoning them, but Dun is determined that nothing will keep him from his revenge against Splinter.
Ray and Egon are recalibrating a machine that tracks extra-dimensional incursions when a dimensional portal opens in front of them, and Donatello appears. He tells them that he and his brothers were just about to depart Dimension X when four monstrous extra dimensional creatures appeared before them, and turned into grotesque versions of the Turtles themselves. The Turtles were unable to effectively fight back against the spectral creatures, so Donatello transported himself to the Ghostbusters' dimension to get help.
Just then, they find him, and Ray realizes that the entities pursuing Donatello are the Collectors. As the Collectors drag Donatello away, the two Ghostbusters try to stop them, but are unable to do so. They inform Peter and Winston of what's happened.
Donatello lands in a strange limbo dimension, where his brothers are waiting. Michelangelo asks if he got help, while Raphael rages at their current situation and Leonardo is already trying to formulate an escape plan. A glowing skull appears, reveals himself as Darius Dun, and tells them that they will be trapped here - his plan is to torment Splinter for the rest of his life by keeping him from ever knowing what happened to his beloved sons.
After Dun vanishes, the Ghostbusters appear through a dimensional doorway, much to the Turtles' joy. Ray gives Donatello an odd headpiece and commands him to step through, where Egon will explain everything to him. Winston says that getting the Turtles out of that prison permanently will take a lot of work.
Donatello emerges and is greeted by Egon, who tells him that the headset is part of a failed psychic communication ray, which will temporarily make the Collectors think Donatello is Winston. He needs Donatello's scientific expertise, because the only way to stop the Collectors is to take them out permanently. To give them time to work on this, the other Ghostbusters are using dimension-hopping gauntlets that allow them and the other three Turtles to travel to other dimensions. Since the Collectors go everywhere together, it would slow them down if there are three separate trails.
Donatello is also shocked to hear that because of the prison dimension's different passage of time, the mere minutes he spent there were three weeks for the Ghostbusters. Egon also calculates that the other Turtles have less than a day before the Collectors will find them, so Donatello gets down to work.
- The Collectors (debut)
- Darius Dun
- Egon Spengler
- Ray Stantz
- Peter Venkman
- Winston Zeddemore
- In the firehouse, the Ghostbusters are shown to have both Ghostbusters and Teenage Mutant Ninja Turtles arcade machines in the background.
- One of the games is Teenage Mutant Ninja Turtles II: The Arcade Game. In the real world, the arcade machine version was simply called Teenage Mutant Ninja Turtles; the title Teenage Mutant Ninja Turtles II: The Arcade Game was only used for the 1990 Nintendo Entertainment System port of that game to distinguish it from the different previously-released 1989 NES platformer game Teenage Mutant Ninja Turtles.