after a little incident with the foot, the turtles come Casey is confused who they are, while April & you are friends with them. Casey tries protecting you and April.

Mikey: I'll introduce us then. Donatello over there in the purple, he is a technical genius who is technically a genius. Raphael over there in the red, he is like a big cuddly teddy bear...If big cuddly were incredibly violent- This is Leonardo in the blue, silent but deadly. And I'm Michelangelo supporting my signature orange.