"Alien brains with eyes and mouths and little tentacle arms. Inside the chests of robots. You wouldn't even believe some of the stuff I've seen." A pause. "Well, maybe you would, it kinda sounds like things are weird where you're from, too. Anyway, it's crazy. It's like something out of my brother's stupid sci fi shows. "

Another pause.

"Then again, mutant turtles are like something out of his stupid sci fi shows. Which makes sense - the only reason me and my brothers exist is because the Kraang were experimenting with terraforming - or I guess Kraangaforming? - Earth so they could invade from their dimension. Sensei ran into some of them when he was taking us home from the pet shop and got into a fight and that's how we all got doused in mutagen."