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Sonic & Knuckles
Death Egg Zone

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Face bald, belligerent Robotnik in his whirling Death Egg!

— United States instruction booklet, Sonic & Knuckles[1]

Death Egg Zone (デスエッグ ゾーン[2] Desu Eggu Zōn?) is the seventh and penultimate Zone of Sonic & Knuckles (and the thirteenth of Sonic the Hedgehog 3 & Knuckles). It takes place within the Death Egg and is also the last major Zone with two Acts. Act 1 takes place inside the ship, while Act 2 takes place outside the ship, with a view of the earth from space.



Having successfully relaunched the Death Egg from the Floating Island with the aid of the Master Emerald that he stole from Knuckles in Hidden Palace Zone, Dr. Robotnik continues into space with his space station. However, Sonic and Tails has managed to leap onto the rising Death Egg from a tall pillar in the Sky Sanctuary Zone. From there, Sonic battles his way through a horrendous Zone full various dangerous contraptions and some very mean Badniks. After defeating a number of Robotnik's more dangerous robots, the last one being the Death Ball, Robotnik tries fleeing from Sonic, leading Sonic into the final fight against the Great Eggman Robo, a mecha robot powered by the Master Emerald. In the end, Sonic destroys the Great Eggman Robo, and the gargantuan robot falls for good as the Death Egg begins falling apart due to its collapse. Robotnik then flees from the scene in his Egg Mobile with the Master Emerald, but is quickly stopped by a few hits from Sonic. The Death Egg then completely crumbles, removing Sonic's foothold.


Death Egg Zone is full of various obstacles and gimmicks, such as rocket launchers, anti-gravity chambers, electrical hazards, and Ring Shooters.

If Sonic obtains all the Chaos Emeralds, he will progress to The Doomsday Zone. Otherwise, the Master Emerald will remain in space and the game will end with the Floating Island remaining in the ocean but free from Robotnik's control.


Red Eye

Main article: Red Eye

The boss of Death Egg Zone Act 1 is the Red Eye, one of the many sentries throughout the Death Egg.

Death Ball

Main article: Death Ball

The boss of Death Egg Zone Act 2 is the Death Ball, a robot resembling a miniature Death Egg with a yellow Bumper shield.

Great Eggman Robo

Main article: Great Eggman Robo

After defeating the Death Ball, the player proceeds to face a giant mech named Great Eggman Robo. This giant robot looks like an EggRobo for the most part, except for its staggering size; its eye is as large as Sonic. The Robo attempts to squish Sonic with its three-fingered hands, of which each finger can be destroyed with three hits. After destroying the robot's hands, the mech stomps after Sonic, shooting flames from its nose. A quick hit on its nose tempts Robotnik to open the robot's large chest, where the Master Emerald can be seen. This huge compartment also contains a weapon powered by the emerald: a focusing lens which uses the Emerald's power to shoot a laser beam at Sonic. Although dangerous, this cannon is the only weak point on the entire robot.


  • The music played during the Great Eggman Robo boss fight is the exact same music played during the Big Arm boss fight in Sonic the Hedgehog 3.
  • Through the Sound Test/Act select, Knuckles can enter Death Egg Zone, but he is not able to complete Act 1 on account of his inability to jump high enough to attack the Red Eye. However, he is still able to complete Act 2, and should the player finish the Act as Knuckles, the game will send the player back to the Title Screen without playing a cutscene.
  • In the Sound Test/Act select, it is spelled without a space in the name, reading "DEATHEGG".
  • Aerobase Zone Act 1 in Sonic the Hedgehog Pocket Adventure reuses the music from Death Egg Zone Act 2.



Act 1


Act 2


Name Artist(s) Length Music Track
N/A (Death Egg Zone Act 1) 1:45
N/A (Death Egg Zone Act 2) 1:42
N/A (Final Boss) 2:27


  1. Sonic & Knuckles (Sega Mega Drive) United States instruction booklet, pg. 15.
  2. Sonic & Knuckles (Sega Mega Drive) Japanese instruction booklet, pg. 36.

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