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Volcano Valley Zone boss

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Volcano Valley Zone boss
Sonic facing Robotnik in his mobile

Sonic 3D Blast
(Only appearance)


Volcano Valley Zone


Eggman's Mobile is equipped to a device that allows him to expel fire.

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The Volcano Valley Zone boss is the fifth boss encountered in Sonic 3D Blast is Volcano Valley Zone, piloted by Dr. Robotnik.


Robotnik will sit in the middle on his Egg Mobile in an arena with only corner platforms and pipes which Sonic can walk on. The remaining area is enclosed with lava, and Robotnik's mobile is protected by fire and lava blasters, which means that Sonic cannot attack him normally. The only chance of defeating the doctor is to lure the homing fire projectiles he fires towards his machine, which will eventually be destroyed by repeating this process a few times.

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