Call-Back: Donnie had messaged Mikey about the new robot menace to that he could name it because he doesn't want another "Newtralizer Incident."
For Want Of A Nail: In "Target: April O'Neil", Chrome Dome was sent to kill April by Karai before he was overwritten to capture her for the Kraang. Here the Shredder has him capture Miwa instead.
It is here that April finds out that Casey has basically been using her to find out about Raphael.
The Shredder realizes that Tang Shen is not dead in this version.
Tomboy Angst: Miwa admits to April that one of the reasons why she has trouble accepting her as a friend is because she thinks that her parents wanted a more traditional girly-girl instead of the brawler that she is and April fits that bill more than she does.
Miwa: Why do you have to be so perfect? April: Me? Perfect? Miwa: Yes, perfect. You with your pretty face, and your book smarts, and that sugary sweetness that just oozes out of you. You're exactly the kind of girl Mother and Father wanted to have in a daughter. But instead they got stuck with me, who can't do a good thing unless it involves hitting somebody. Whenever I try to be sweet it turns to poison. So I'm better off just getting in trouble. It's what I'm good at, even if my parents wish I wouldn't.
Wham Episode: It is here that Shredder finds out that Tang Shen is alive and has sons.
