The Mutagen Stories are short chapters related to the main Teenage Mutant Ninja Turtles. They showcase the ways mutants from the franchise became allies or enemies of the turtles, and how they became acquainted to the mutagen. If a mutant is not included in these chapters, they will be introduced through the main issues.


  • The Punk Frogs (Rasputin, Attila, Genghis and Napoleon)
  • Bebop (Anton)
  • Spider Bytez (Vic)
  • Rahzar (Chris Bradford)
  • Rahzar Part 2 (Chris Bradford, Xever)
  • The Newtralizer
  • The Rat King (Dr. Victor Falco)
  • Rocksteady (Steranko)

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