These are the Dueling Dragons, which are in the Universal Studios Islands of Adventure in Orlando, Florida. They were the first dueling inverted coasters in the world when they came out last year. These dueling monsters reach a height of 125 feet, and go a little over 50 miles per hour when they reach the bottom of the first drop. I liked the red one because it had more drops, and the blue one had more inversions and twists. (Picture courtesy of www.coasterhost.com)