Who is more legendary . . . Robot or Dinosaur? On the first day of school, Robot and Dinosaur collide in the hallway, setting off a series of epic science-fiction prehistoric challenges to find out who really is the best at everything. Whether it's making a milkshake, writing a poem, or playing the drums, your choices decide who wins in this one-of-a-kind book with over 30 challenges and 26 possible endings. Play as Robot or play as Dinosaur. Finish it once and go back and make different choices for hours and hours of fun. Will Robot's cybertronic brain win out, or will Dinosaur's Cretaceous courage come through? Open the book and let the competition begin!