Galamton

Galamton is the final boss of Project X Zone 3: Sacred Destinies, he is a demon who has a rivality with Arisu Clan.

Crosspedia Entry
A Demon who was the responsible of a disaster caused 10 billions years ago similar to Ouma and Oros Phlox's ones, the Arisu Clan of that time takes control of the situation, one of them discovers the Arisu Clan's Forbidden Art and uses it to put him to an eternal slumber, however dies shortly after.

But his dormant state ends later in the present timeline when Ouma wakes him up to start their final shodown for a new world's rebirth.

His body is a humanoid-like form with an scenario replacing a skin, he has two forms: "Neutral", where his skin shows the space and has no face, the "Awaken" form is where he reveals his true self, the space skin is changed for fire and his face is shown

Super powerful, an incredible wrath, this being has too much power within.

Trivia

 * His appearance is based on Tabuu from Super Smash Bros. Brawl.
 * When he is on his Awaken Form, some Kanjis are seen on his devil wings that translated to english means "Dark, Fear, Death, Blood and Despair" respectively.