Conversation so far:
What is O'Neil's role in Teenage Mutant Ninja Turtles?
CANNOTANSWER.
Are there any other interesting aspects about this article?
She was seen wielding a katana in the special episode "Turtles Forever".

Question: Why was this episode special?
Self-contained rewrite: Why was the Turtles Forever episode of Teenage Mutant Ninja Turtlesspecial?