The Heikki Helmet Bird (aka Race Car Bird Terrence Helmet Bird or Helmet Bird or Big Brother Helmet Bird or Big Brother Heikki Bird ect.) is Big Brother Bird with a helmet on making it more strong. He has the same ability. You have to type in the secret code (I know it) to get it. You can use it once a level. You push the button up top to get it once you've entered the code.