Sonic the Hedgehog

The story is straightforward. Dr. Robotnik has captured many of Sonic's animal friends and trapped them inside robots. Fortunately, Sonic can free his friends by destroying the robots with his spin attack. Meanwhile, Dr. Robotnik is trying to control the powerful chaos emeralds. Sonic must grab them before he does in the rotating bonus levels.

The gameplay revolves around Sonic's spin attack; while jumping, it destroys hostile robots by touch. Throughout the platforming levels, Sonic collects rings. If hit by an enemy, all the rings fall out and scatter around; Sonic can quickly grab them back before they disappear. Collecting 100 rings gives Sonic extra lives. There is also an invincibility bonus that temporarily protects Sonic from attacks.

The game is divided into several zones, each containing three levels. At the end of each zone, Sonic faces Dr. Robotnik in a boss fight.