Our Sonic guy will have completely new speed challenges. The speedy green hedgehog will have to overcome dangerous hidden quests to collect lots of gold rings. In Sonic 2 Delta II, he will have to fight Dr.Robotnik himself and take down lots of badniks. You will have to control Sonic to overcome the levels as quickly as possible, stick to the ground or overcome difficult steep slopes to defeat the doctor's plans.
If you are a fan of classic video games, you must try other titles like Ordinary Sonic, Sonic The Hedgehog 3...