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The Loyal Subjects shared a sneak peek at a new Teenage Mutant Ninja Turtles IDW Shredder in Hell Figure via Instagram Stories. It will come with a Shredder in Hell comic book and be out in the fall.
The retail release is the pictures showing the comic book cover and window box with the flap (it includes a copy of the comic book as well). The fourth picture below shows a special edition, which is a slight color variation.