MECHA SONIC MK.II by BEANS645 on Newgrounds

Mecha sonic is, right now, attempting to avenge the death of Robotnik while the Earth appears in the background indicating that he is sad and internally depressed because he hates the Earth. The "GO!" means that he is "GO!"-ing to kill his father

Sonic The Hedgeblog — The introduction to Grounder, from 'Dr. Robotnik's

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