He learns that they can travel anywhere using large rings , so he decides to exploit them by turning them into robots to help him search for the Chaos Emeralds .
Doctor Robotnik discovers mysterious birds called Flickies that live on an island in an alternate dimension .
Doctor Robotnik learns that they can travel anywhere using large rings , so Doctor Robotnik decides to exploit them by turning them into robots to help Doctor Robotnik search for the Chaos Emeralds .
Doctor Robotnik discovers mysterious birds called Flickies that live on an island in an alternate dimension .