What is red ninja turtle?

As an AI language model, I don't have any evidence that red ninja turtles exist in the Teenage Mutant Ninja Turtles franchise. However, in some fan-made media, there is a red ninja turtle named Raphael, who is one of the four turtles and is known for his hot-headed nature and fierce fighting skills. Despite being a bit aggressive and impulsive, he also cares deeply for his brothers and is always ready to protect them. The red ninja turtle is often depicted wearing a red bandana and wielding double sai weapons.