This boss is a relatively simple introduction to boss battles. Dr. Robotnik pilots a machine that bounces around the arena, occasionally extending a spiked arm. The arena features bouncy mushrooms that can help you reach Robotnik's cockpit.

- Phase 1: Robotnik bounces around. Wait for him to lower his cockpit or for him to be at the peak of a bounce near a mushroom.
- Sonic Strategy: Use the bouncy mushrooms to launch yourself into the air and perform a Spin Attack on Robotnik's cockpit. Be careful to avoid the spiked arm when it extends. A well-timed Insta-Shield can protect you if you misjudge.
- Knuckles Strategy: Knuckles can use the mushrooms to gain height, then glide towards Robotnik's cockpit for a punch. His glide also allows for more precise positioning to avoid the spiked arm.
- Weakness: Robotnik's cockpit.
- Reward: Clear the zone, proceed to Flying Battery Zone.