The ARK's eyecatch card profile as seen in Sonic X.

Space Colony ARK
 (スペースコロニー・アーク Supēsu Koronī Āku?) was the most advanced research center of its kind, built more than fifty years before the events of the Sonic Adventure 2.

Space Colony ARK also appeared in the Sonic X adaptation of Sonic Adventure 2 where its role mirrors to that of the games.


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