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"Drill Eggman" redirects here. You may be looking for Drill Eggman II, the boss of the Mystic Cave Zone, or Doctor Robotnik's Jet Drill Pod from Sonic the Hedgehog 3.

The Egg Mobile Drill Machine-shiyou (エッグモービル・ドリルマシン仕様[1] Eggumōbiru Dorirumashin-shiyō?), better known as Egg Mobile-D,[1] and Drill Eggman (ドリルエッグマン[2] Doriru Egguman?), is a vehicle from the Sonic the Hedgehog series. It is a modified Egg Mobile created by Dr. Eggman, who first used it during the West Side Island incident.



The Egg Mobile-D is a predominantly red and gray armored dune buggy-like vehicle that runs on four wheels. It has the Egg Mobile located in the middle, and a large drill at the front.

Features and abilities

The Egg Mobile-D's main feature include the large spinning drill at the front end of the machine. It is also capable of functioning as a long-ranged but somewhat slow projectile weapon, as it can be launched from the front end towards its target.

Game appearances

Sonic the Hedgehog 2

In Sonic the Hedgehog 2, and its lock-on version Knuckles the Echidna in Sonic the Hedgehog 2, the Egg Mobile-D appears under the name Drill Eggman. The battle takes place in Emerald Hill Zone Act 1, in an arena with a slightly uneven terrain. At the beginning of the boss fight, Dr. Robotnik will arrive in his Egg Mobile and attach it to the drill vehicle. He will then proceed to drive the Drill Mobile back and forth across the screen.

Drill Eggman is vulnerable to a simple Spin Attack. After being hit seven times, Robotnik will laugh and shoot the drill-bit straight off the Drill Mobile. One final hit is required to destroy the machine, after which the doctor detaches his Egg Mobile from the vehicle and flies away. The player can then open the Capsule and complete the Zone.

In Sonic the Hedgehog 2 from the Sonic Cafe mobile phone service, the Drill Eggman is slightly bulkier and has a little more armor, making the hitbox of vehicle smaller to attack.

Sonic Jam (

In Sonic Jam (, the Egg Mobile-D appears as one of the bosses in Emerald Hill Zone.

Sonic Advance

In Sonic Advance, the Egg Mobile-D appears as the second boss of X-Zone (as well as the eighth boss overall in the game).

While the battle is mostly the same, there are slight differences now. In the beginning of the fight, Eggman is already seen in the Egg Mobile-D when it arrives to the battle arena, which is now completely flat. This version takes only four hits to be destroyed, while like in Sonic the Hedgehog 2, it shoots its drill part towards the player after the third hit. After destroying the Egg Mobile-D completely, Eggman flees, allowing the player to progress further in the X-Zone.

Sonic Mania

In Sonic Mania, and its expansion Sonic Mania Plus, a mini version of the Egg Mobile-D appears as one of the many prizes the Gachapandora can drop. In gameplay, it will go back and forth across the arena. Each one of these "prizes" require three hits to be destroyed.

In other media

Archie Comics

Main article: Egg Driller

The Egg Driller, from Sonic Universe #84..

In the Sonic the Hedgehog comic series and its spin-offs published by the Archie Comics, the Egg Mobile-D appears as a vehicle used by Dr. Eggman under the name Egg Driller. The doctor used the vehicle during a mission to recover his refinery alongside Axel the Water Buffalo.


Concept artwork of early design of Egg Monster, resembling Egg Mobile-D.

  • A similar vehicle to the Egg Mobile-D was originally going to be Eggman's racing vehicle in Sonic & Sega All-Stars Racing, as it is shown to be somewhat smaller in early concept art. In the finished product however, Eggman's racing car became the Egg Monster.
  • In Sonic Jam compilation, Drill Eggman is one of three bosses that the player will encounter in the easy mode of Sonic the Hedgehog 2. While having an identical attack pattern, it only takes three hits to defeat it.






Game Name Artist Length Music Track
Sonic the Hedgehog 2 "STH2 Boss 〜Mega Drive version〜". Masato Nakamura 2:14
Sonic Advance X-Zone Second Boss Tatsuyuki Maeda, Yutake Minobe, Hironobu Inagaki, Atsuyoshi Isemura 1:22


  1. 1.0 1.1 Aspect (2 August 2002). "Final Zone". (in Japanese) ソニックアドバンス必勝パーフェクトガイド. pp. 66-67. ISBN 978-4757209145. Retrieved January 18, 2017.
  2. (in Japanese) ソニックメガコレクション最強攻略ガイド. Shogakukan. 1 March 2003. p. 65. ISBN 978-4091060907.

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