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Sonic News Network
Sonic News Network

The Egg Crusher[1] is an object that appears in the Sonic the Hedgehog series. It is a machine encompassing an entire room that Dr. Robotnik used as his final weapon against Sonic the Hedgehog during the South Island incident.



The Egg Crusher consists of an entire room in the Final Zone. This room has four large, silver-colored cylindrical pistons, each with space inside it for a pilot, bulit into the floor and ceiling of the Final Zone. It also has a large red bulb built into the right wall near the ceiling.

Features and abilities

In additon to being able to crush foes with its pistons, the Egg Crusher sports a red bulb, which can launch purple energy orbs that home in on targets slightly.


Sonic the Hedgehog (16-bit)

In Sonic the Hedgehog (16-bit), Dr. Robotnik used the Egg Crusher for a last attempt to defeat Sonic in Final Zone. However, his efforts were left in vain when the Egg Crusher was destroyed by Sonic instead, prompting the doctor to attempt fleeing in his Egg Mobile.


The Egg Crusher is the boss of Final Zone in the original Sonic the Hedgehog, and the sixth and final boss in the game overall. In the original version of the game, it is battled only by Sonic, while in the 2013 re-release of the game, it can also be battled with Tails or Knuckles.

Boss guide

When Sonic enters the Egg Crusher's chamber, Dr. Robotnik attacks him by using four large engine pistons. These pistons are able to easily crush Sonic against the ceiling or floor, should he lie underneath them when they activate. Every time two of four pistons come out; one decoy, and one with Dr. Robotnik laughing inside of it. Sonic must attack the piston with Dr. Robotnik in it. Each time the pistons move, Sonic is able to attack Dr. Robotnik once. However, the player has to be careful depending which pistons will come out attempting to crush Sonic. Also, between each piston cycles, there is a small electric generator creating four spark balls that descend from the ceiling towards Sonic, who must dodge them. When the generator is creating and aiming these spark balls, the player has to choose a place to stay to avoid them. Due to the absence of rings, touching a spark ball results in instantly losing a life. The player can target them to the center of room and then do a Spin Jump to dodge them completely or can stay at one far side of the room and move to the other as the spark balls are fired. After this, another two pistons will appear, and the battle keeps repeating the pattern.

Like every other boss in the game, Sonic must hit Dr. Robotnik eight times to finish off the doctor for good. After landing all eight hits, the pistons start exploding and Dr. Robotnik escapes from the room. Sonic must follow him, as Dr. Robotnik hops into his Egg Mobile and starts flying away. During this time, the player is given the option to land one last hit on the Egg Mobile, which causes it to explode, sending Robotnik downwards towards a pit. If the player does not land the extra hit, Robotnik simply flies away. Regardless, this choice has no effect on gameplay, as the Zone subsequently ends.


Name Artist(s) Length Music Track
"StH1 Final Zone ~Mega Drive Version~" Masato Nakamura 1:16

In other media

Books and comics

Sonic X

Main article: Egg Crusher (Sonic X)

Sonic facing Eggman in the Egg Crusher, from Sonic X #11.

The Egg Crusher is briefly featured in Archie Comics's Sonic X #11, albeit only appearing in Eggman's virtual simulation. After reaching Final Zone, Sonic and his friends defeated the Egg Crusher.

Archie Comics

Main articles: Egg Crusher (Archie) and Egg Crusher (Pre-Super Genesis Wave)

Sonic facing Eggman in the Egg Crusher, from Sonic the Hedgehog #227.

In the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics, the Egg Crusher appeared as an installment in the Scrap Brain Zone following the launch of the first Genesis Wave. Sonic eventually arrived at the Final Zone, and despite interferience from a Shield, managed to defeat Eggman and his Egg Crusher with the help of Antoine and the other Knothole Freedom Fighters.

After the events of Worlds Collide, the Egg Crusher was rewritten with a history nearly identical to its game counterpart.


  • If Sonic delivers the final hit to the Egg Crusher and hits twice instead (with the right timing), a glitch will happen which indicates that the boss needs to be hit another 255 times, caused by underflowing the hit point counter for the boss.
    • After defeating the Egg Crusher, a glitch may happen that causes Sonic to jump into a bottomless pit, thus losing a life.
  • In Sonic Mania, the Egg Crusher is referenced in Metallic Madness Zone with the Egg Pistons mk.II mini-boss, which appears to be an upgraded version of this boss.





  1. Flynn, Ian; Sega (8 December 2021). Sonic the Hedgehog Encyclo-speed-ia. Dark Horse Books. ISBN 978-1506719276. "In the final, single-act encounter you have a split second to determine which giant piston of the Egg Crusher Dr. Eggman is hiding in."