Marble Garden Zone's bosses involve drilling mechanics and require precise timing to avoid their attacks and land your own.
Mini-Boss: Drill Mobile
- Location: Marble Garden Zone Act 1
- Description: A large, stationary drilling machine.
- Attack Pattern: Extends drills from its sides and top, then retracts them. It also kicks up debris when drilling.
- Strategy: Attack the Drill Mobile when its drills are retracted. Wait for it to retract its drills, then jump and hit its central core. Be careful of the debris it kicks up, as it can damage you. Three to four hits will destroy it. The Lightning Shield's double jump can help you reach its core more easily.
- Weakness: Central core when drills are retracted.
- Reward: Clear path to the next section.
Boss: Egg Mobile (Drill)
- Location: Marble Garden Zone Act 2
- Description: Dr. Robotnik in a drilling machine that creates temporary platforms.
- Attack Pattern: Moves across the screen, periodically dropping a drill into the ground to create a temporary platform. He is vulnerable when he is not drilling.
- Strategy: Wait for Robotnik to drop his drill. Jump onto the drill, then jump again to hit Robotnik in his cockpit. Be careful not to get hit by the drill itself or fall into the pits it creates. The arena has a rotating central pillar; use it to your advantage for positioning. Seven to eight hits will defeat him.
- Weakness: Robotnik's cockpit when exposed.
- Reward: Progress to Carnival Night Zone.