That's where the "This is where I watched my parents die, Raphael" meme is from. Context in comments.

During the course of the story, the Turtles get trapped in Gotham. Raphael has an argument with Bruce, claiming he's just a rich boy doing what he does for kicks and not because he actually cares, while the Turtles do what they do because they have to, or else they die. In response, Bruce leads Raph to Crime Alley and shows him where Martha and Thomas died, then explains that he became Batman for two reasons:

1. To overcome his fear
2. To prevent the same thing from happening to other families

Yes, but in the original Raph didn't have a response. He just stood there silently while Batman trauma dumped his whole backstory.

There's also a crossover between Ghostbusters and tmnt.

Elaborate

They made a comic where shredder works with an oni to take over new York, the Ghostbusters are tracking increased ghost activity, turtles are tracking shredder. Figure out they're after the same thing.