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Graviton Mobile

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Graviton Mobile
It's giant talking ball

Carnival Night Zone Act 2


Hovering, electrical mobile with generators and heavy green ball. To defeat it, the player has to do eight hits.

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The Graviton Mobile (グラビトンモービル Gurabiton Mōbiru?) is a boss that appears in Sonic the Hedgehog 3. It is fought at the end of Carnival Night Zone Act 2. It takes eight hits to be destroyed. In both Sonic the Hedgehog 3 and the locked-on version of the game, Sonic the Hedgehog 3 & Knuckles, only Sonic the Hedgehog and Miles "Tails" Prower will fight against the Graviton Mobile, however, it is possible for Knuckles to fight the Graviton Mobile as well.

Graviton Mobile is an orange electrical mobile created and piloted by Dr. Robotnik that has four generators with dark green orbs on them, which produce electricity. On the bottom, the Graviton Mobile has a heavy dark green ball that is used to create a pull with the electric generators.


When the player enters the open arena, Dr. Robotnik appears from the right side of the arena in his Graviton Mobile and starts following Sonic/Tails from above. After a while, Dr. Robotnik will drop a large dark green ball on the ground, which he will start hovering directly above. He will then activate four generators on the side of the Graviton Mobile which will start rotating around it, creating a sort of electricity wall that arcs downwards around the ball. This will creating a suction for about seven seconds that will draw the player towards the ball and the electric wall, unless the player is constantly moving away from it. Robotnik then descends to pick the ball up to repeat the pattern, which is the player's best chance to attack the Graviton Mobile. However the dark green ball will also damage the player when the player is touching it, as will the the generators if the player touches them as they retreat from hitting the Graviton Mobile.

The Graviton Mobile has a tendency to take a long time to complete due to the limited chances to attack it and, possibly, Carnival Night Zone Act 2 being a long level. Getting a time out can be the biggest problem when confronting this boss. There are several changes to land more hits on the Graviton Mobile by using Sonic's Insta-Shield at right spot or having Lightning Shield. Tails can also have the advantage of being able to damage the mobile from below whilst in flight. After eight hits, Robotnik's Graviton Mobile gets destroyed and the player opens the capsule, thus completing Carnival Night Zone and moving on to IceCap Zone by using a nearby cannon.


  • In locked-on version of Sonic the Hedgehog 3 & Knuckles, Knuckles skips this boss battle completely by taking the lower pathway, where only Knuckles can access at the start of Act 2. In the end of the act, the player ends up to the same room, where Knuckles sends Sonic/Tails flying to the boss arena. In the same room, there's capsule and teleporter, that after finishing the act will transport Knuckles to the IceCap Zone.
    • If the player takes the regular path via an upwards facing propulsion tube near the beginning of the act, the capsule won't appear and Knuckles has to climb up the tube to fight the boss. EggRobo will be seen controlling the Graviton Mobile.
      • Beating the boss also causes cutscene mishaps.


Sonic the Hedgehog 3 & Knuckles

Main articles (Sonic 3 | Sonic & Knuckles | Sonic 3 & Knuckles) | Sonic 3's Gallery | Beta elements | Sonic & Knuckles' Gallery

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