Sonic goes metal! Did you know that he is a real robot now, mighty and strong? This time, Doctor Robotnic won’t do him no harm for sure, because our dear hedgehog is made of steel. He is here to save the island from the evil deeds of Robotnic and his servants. What is more, Sonic is not alone here – there is also Knuckles, his friend. He is not metal still, but it doesn’t make him any weaker! Together, friends will travel across the lands and save the poor victims of nasty Doctor. Do your best!