Fan Casting Mutations in The Teenage Mutant Ninja Turtles (Season Three): The Rise of Krang

In the middle of the battle against the Krang, Jennika is severely injured which leads to the Turtles having to conduct a blood transfusion in order to save her life. However, when Leo’s blood makes contact with Jennika’s bloodstream it mutates her into a turtle-human hybrid much like the TMNT themselves.