When you think about it, Batman and the Ninja Turtles have a lot in common. They're orphans, they're well-trained in martial arts, they thrive in darkness. I think they're all aliens too but I could be wrong about that.
We read their DC/IDW co-published 6-issue crossover from 2016.
Then, Peter Parker starts making that money in Amazing Spider-Man #2
Next Time: Locke & Key, Vol. 2 - Head Games