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Recap: Teenage Mutant Ninja Turtles 2012 S 2 E 12 Of Rats And Men
The Rat King returns, and wishes to mutate the populace of the world into rats.
Blindfolded Vision: Splinter fights the Turtles while blindfolded in the beginning, and easily bests them. In the end, he uses this against the Rat King, whose power is to see through rats' eyes. After losing his seeing-eye rat, and unable to see through Splinter's blindfold, the Rat King fails quickly.
Family-Unfriendly Death: Irma at one point accidentally sends rats plummeting into a fan. This is for the most part on-screen.
Foreshadowing: In the cold open, Irma says rats have a lot in common with people.
She also vows to one day figure out where April and Casey are always running off to, implying she'll meet the turtles.
Ironic Echo: The Rat King, once he's rendered blind, is left to the exact same treatment he gave Splinter, being taunted and beaten while trapped stuck in the dark. Some of the camera angles and character movements are even exactly the same.
Lethal Joke Character: Ice-Cream Kitty proves surprisingly effective at fighting off the Rat King and his minions.
Mythology Gag: The first person the Rat King plans to mutate into a rat is Irma. He actually did mutate her into a rat in one episode of the '87 cartoon.
Never Trust a Trailer: Almost all of the marketing focuses on Ice-Cream Kitty, a character who is more or less just a comical subplot in an episode where The Rat King appears.
The Plague: Rat King's plan is to turn people into rats then have them infect others until all of humanity falls under his control.