General Ganzu

General Ganzu is the final boss of Super Bomberman 2 and somewhat of a surprise - for much of the game Plasma Bomber is seen as the main antagonist alongside four other villains (officially known as the Fiendish Bombers) but in a dramatic end-game sequence General Ganzu is revealed as the true antagonist.

General Ganzu is a one-eyed alien monstrosity that lay hidden until after Plasma Bomber and Bomberman's final confrontation - when Plasma Bomber tried to call a truce General Ganzu decided to reveal himself and knocked Plasma Bomber out before assaulting Bomberman personally.

However the alien is soon dealt a fiery defeat as Bomberman blows up the area General Ganzu was at and unlike the other villains of the story he did not return in any sequels - suggesting General Ganzu was destroyed in the battle.