Unity Engine

The Unity Engines are object that appears in the Sonic the Hedgehog and its spin-offs published by Archie Comics. They are key components in Sigma's plans to channel the energy of two worlds into himself, furthering his evolution and ultimately to ascend to godhood.

History
With designs provided by Sigma, the Unity Engines were constructed by the unwilling Drs. EEggman and Wily by Sigma's command.