Phantom Bison

Phantom Bison (ファントム ベガ) is a form M. Bison takes after his body is destroyed, his consciousness living on in an incorporeal form through Psycho Power. Despite the lack of a physical body, his will and power remain intact.

Appearance
Phantom Bison looks nearly identical to M. Bison's appearance in his physical body, save for the fact that he is now a transparent shade of purple.

Personality
Even though he is in a non-corporeal state, his megalomaniacal personality remains the same, still having his like of world domination and dislikes of weak people and incompetent underlings.

A Shadow Falls
Phantom Bison appears in the beginning of Street Fighter V: A Shadow Falls in the form of an illusion fought by Nash upon reawakening. He uses a near-identical moveset to his playable counterpart.

His Street Fighter V profile states that at the end of the Story Mode, after Bison's body was destroyed by Ryu, his consciousness remained, turning to an incorporeal form.