Sonic News Network

Know something we don't about Sonic? Don't hesitate in signing up today! It's fast, free, and easy, and you will get a wealth of new abilities, and it also hides your IP address from public view. We are in need of content, and everyone has something to contribute!

If you have an account, please log in.


Sonic News Network
Sonic News Network

The Jet Mobile[1] (ジェットモービル[2] Jettomōbiru?), also known as the Egg Scrambler,[3] is a vehicle from the Sonic the Hedgehog series. It is a blue vehicle that can change the stations created by Dr. Robotnik during the second part of the Angel Island incident.



The Jet Mobile is a half pear shaped blue shell with the Egg Mobile exposed. This "shell" contains a gold bezel, a small tube on the back of what appears to be bronze, and a blue antenna (slightly lighter than the shell). Under the Egg Mobile, there are two medium thrusters connected to this shell.

Features and abilities

The main feature of the Jet Mobile is that its antenna can change the seasons of its beam target. The shell it contains is shown to be very tough, as it can withstand the iron balls it hits.


The Jet Mobile contains a weakness: it has the Egg Mobile exposed. By hitting this many times, the Jet Mobile becomes uncontrollable due to the errors that its controls receives. Its antenna is very vulnerable too, since with a simple Spin Attack it can be destroyed and reverse all the changes it made. Also, its rays are harmless, and the change in seasons does not appear to affect the weather, as when the Mushroom Hill Zone was switched to winter (noted by white grass), it lacked snow or some snowfall.


Sonic the Hedgehog 3 & Knuckles

In Sonic & Knuckles, and its lock-on version Sonic the Hedgehog 3 & Knuckles, Dr. Robotnik built the Jet Mobile when he realised that Sonic the Hedgehog and Miles "Tails" Prower were still meddling in his plans in Mushroom Hill Zone after the Death Egg collapsed. However, this one did not last long in battle and ended up colliding into a large tree/mushroom due to a block of controls.

Much time later, an Eggrobo the Jet Mobile to dispose of Knuckles the Echidna in Mushroom Hill Zone. Like before, however, this one was hit in a tree/mushroom after its controls got blocked, and destroyed in the process.

Other game appearances

Sonic Jam (

In Sonic Jam (, the Jet Mobile appears as one of the bosses in Mushroom Hill Zone.


The Jet Mobile is the boss in Mushroom Hill Zone Act 2 in Sonic & Knuckles and Sonic the Hedgehog 3 & Knuckles. It is the second and the fifteenth boss respectively in general. In Sonic & Knuckles, it is confronted either by Sonic or Knuckles in their respective stories, and in Sonic the Hedgehog 3 & Knuckles, it can also be confronted by Tails on his own or as Sonic's partner.

Boss guide

The boss first starts with the lightning-shooting antenna that changes the seasons. It can be destroyed with a Spin Attack without problems. After destroying it, Dr. Robotnik/Eggrobo shows up on the Jet Mobile, and the battle begins.

This boss is more like a minigame than a battle. Players run nonstop while chasing the Jet Mobile. They can also press the right button to gain speed. In the chase, small groups of iron balls will appear between logs, requiring to jump at the right time, or just do nothing. The Jet Mobile will constantly go to the left and right. By getting close enough, the player can jump and hit the exposed Egg Mobile. This requires care since its thrusters are deadly to the player's health. After hitting it, the playable character will go to the left side of the area, forcing them to keep running, catch up to the Jet Mobile and hit him again.

Eight hits are required to conclude the battle. By giving those eight hits, the Jet Mobile will collide with a tree/mushroom, and the player will be able to proceed to the Capsule and then end the Zone.


  • A glitch sometimes occurs during Knuckles' story, causing Robotnik to be the pilot of the machine instead of the Eggrobo.
  • The satellite whose destruction restores the state of Mushroom Hill Zone is likely the same environment-changing device mentioned in the Japanese manual of Sonic the Hedgehog 3.
  • Oddly, whenever the Jet Mobile is damaged, the spiked ball hurtles are also seen taking damage, meaning that they also flash when the Jet Mobile itself is hit.


  1. Flynn, Ian; Sega (8 December 2021). Sonic the Hedgehog Encyclo-speed-ia. Dark Horse Books. p. 54. ISBN 978-1506719276. "Bosses: Act 2 -Jet Mobile. With the satellite dish destroyed, Dr. Eggman (or Eggrobo) retreats through a gauntlet of spiked hazards."
  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. 155. ISBN 978-4091060907.
  3. Flynn, Ian; Sega (8 December 2021). Sonic the Hedgehog Encyclo-speed-ia. Dark Horse Books. p. 58. ISBN 978-1506719276. "Bosses - Egg Scrambler"

Main article (Blue Sphere, Knuckles in Sonic 2, Sonic 3 & Knuckles) | Credits | Manuals | Beta elements | Gallery