Shredder, Donatello and others in “Unfinished Business”

Your skills are impressive. But they will not save you.

Oh, man. You think that's the Shredder?

Well, it's definitely a Shredder.

There is undoubtedly a fascinating story as to how my old nemesis came to teach ninjitsu to four mutant turtles. Perhaps I will let one of you live long enough to tell it.

You're gonna have to catch us first! Mikey!?

So long, sucker!