When Dr. Eggman (Robotnik in the US version) holds the president and his daughter hostage, Sonic must comply to the evil scientist's demand of going to Eggmanland to stop Black Eggman and deactivate the city's generator before it reaches critical mass. Little does Sonic know that it's a trap to activate Hyper Metal Sonic, a robot counterpart built by Eggman to destroy our hero.
(Source: ANN)+ More
Characters & Voice Actors

Metal Sonic
Main
Dehan, Gary
English
Robotnik, Ivo
Main
Takiguchi, Junpei
Japanese
Sonic the Hedgehog
Main
Kikuchi, Masami
Japanese
Matsumoto, Yasunori
Japanese
Prower, Miles
Supporting
Shiina, Hekiru
Japanese
Sara
Supporting
Kanai, Mika
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