The Machine (Turrican)

The Machine is the main antagonist of Super Turrican and Super Turrican 2 for the SNES - he is an evil overlord who seeks to conquer and ruin the entire universe with the aid of his vast armies and is opposed by the titular Turrican, who fights for freedom and justice.

Both games show The Machine as a powerful opponent, the second game outright calling him the "incarnation of evil" - he is also responsible for untold death and destruction, quite possibly the single most feared dictator in his setting.