Boss X

I am the real Master of Black X. I control everything. I rule every region. You shall die!
~ Boss X

Boss X is the main villain and final boss of Red's storyline in SaGa Frontier.

Dr. Klein thought he is in control of Black X organization: He couldn't be more wrong.

Boss X is a strange creature on a huge robotic body, and the true leader of Black X. His past is a complete mystery. It is also unknown how Boss X came to be the leader of Black X, as the organization was led by Black Cross before him. He is fought inside Black X's base, after Alkaiser defeats the Four Emperors sent by Dr. Klein. Annoyed by Klein's repeated failures on removing Alkaiser, Boss X shoves him away and decides to fight Alkaiser by himself. However he also ends up being defeated, and with his defeat Black X is ultimately finished and Red avenging the death of his father.


Boss X seems to prefer to keep his leadership of Black X a secret. That said he does show a high opinion of himself by claiming he's in complete control and that he can defeat any foe he fights: a claim proved to be wrong when Red took him out.

SaGa Villains

Makai Toushi SaGa
Gen-Bu - Sei-Ryu - Byak-Ko - Su-Zaku - Ashura - The Creator
SaGa 2
Rhino - Ashura - Phagoycte - Dunatis - Ninja - Venus - Echigoya - Sho-gun - Magnate - Apollo - Arsenal
SaGa 3
Lara - Dogra - Dahak - Fenrir - Jorgandr - Maitreya - Chaos - Guha - WaterHag - Agron - Ballor - Water Entity - Xagor
Romancing SaGa
Saiva - Cornelio - Lord Harun - Butcher - Ewei - Ifrit - Jewel Beast - Soulgutter - Minions - Saruin
Romancing SaGa 2
Hive Queen - Seven Heroes (Wagnas - Kznisse - Noel - Rocbouquet - Bohkohn - Dantarg - Subier)
Romancing SaGa 3
Godwin - Dophore - Maximus - Tao Gao - Abyss Lords (Forneus - Arakes - Aunas - Byunei) - The Destroyer
SaGa Frontier
Ciato - Orlouge - RB3 - Genocide Heart - Hell's Lord - Mei-Ling - Black X (Shuzer - Berva - Cindy Campbell - Metal Black - Dr. Klein - Boss X) - Joker - Mondo - Spriggan
SaGa Frontier 2
Alexei Sergein - Megalith Beast - Cantal - Nicolette Drangueforde - Misty - Sargon - Fake Gustave - Egg
Unlimited Saga
Clyde Blackstorm - Dagul Bos - Basil Galeos - Jeanne Maure - Kalandorn Alovi - Leon Burgundy - Yun Crimsonrain - Knights of the Round Table (Phantom) - Chaos
Imperial SaGa