H.A.D.E.S.

H.A.D.E.S. was an intelligent AI created by Megatron following the success of Project Zero Hour. Upon its activation, H.A.D.E.S. immediately begun planning the extinction of all life on the planet Earth -- which included the Transformers residing there as well. By the time Megatron discovered the treachery, it was too late. Fortunately, efforts by the Autobots and Humans resulted in the deactivation of H.A.D.E.S. and stopping its plan for good.

It was later revealed that Outblast had captured H.A.D.E.S. with the intention of learning more about its power.