sonic55SA-55[1][2][3] is a character that appears in the Sonic the Hedgehog series. It was a robot created by Doctor Eggman, who assisted him during the premature time of awakening. The precursorIDW Sonic Issue #55Determined to end Sonic once and for all, Surge takes the fht home to Star Base Sma. But lingering ghosts and visitors threaten Su...