Location » T.C.R.I. Building appears in 16 issues.
A slime that mutates human or animal DNA. After four ordinary turtles were exposed to this substance they became the Teenage Mutant Ninja Turtles. Others owe their origins to this substance as well.
The Container that contained goo that transformed Teenage Mutant Ninja Turtles into mutants. The only lead that Turtles have about their origins.
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