The Zone consists of three acts followed by a boss fight against Dr. Eggman at the end of the third act. If the player reaches the goal with at least fifty Rings, they will receive a fragment of the purple Chaos Emerald.
BossDuring this boss fight, Dr. Eggman will be in a machine that swings a ball around attempting to hit Sonic. Sonic, himself, must attempt to hit Eggman while jumping from disappearing platforms that reform after about 5 seconds. Only three hits are needed to take down Dr. Eggman's machine.
- The music played during the Mechanical Zone is a version of Vengeance is Mine.
- The boss fight with Eggman is a reference to the Egg Mobile-H.