How fast can the chicken from hell run?

The "chicken from hell" is a nickname for the dinosaur species Ankylosaurus, which lived around 75 million years ago. It was not actually a chicken, but rather a large, armored dinosaur. If you're referring to the modern notion of a fast-running chicken, domestic chickens can run at speeds of about 9 miles per hour. However, the term "chicken from hell" often evokes the image of a fictional or exaggerated creature, leaving its speed to the imagination.