What is it that makes the Turtles work?

[Pterobat]

My theory is always that the Turtles multiverse is just completely insane, and that's why it's popular.

The premise is crazy, the main characters are weird, and the stories can draw on just about anything from fantasy and science fiction. That means huge possibilities for the types of things you can do with it, and an almost inexhaustible supply of scenarios.

You can also present the Turtles with radically different tones and have it always work, as history has proven.

And yes, that it has four main characters with distinct personalities means that a lot of different people can get into the franchise, because each Turtle offers something different.