Fight Akuma
When playing a one-player game don't use any continues. When you get up to Bison, Akuma will come out and fight you.
Play as Akuma
Select the Versus mode and set the speed. when you select a character, simultaneously press A, B, C, L, R, and P. Hold down these buttons until your opponent has selected their character. Akuma's silhouette appears on the Stage Select screen. On the Result screen Akuma's record is listed under the name "Gouki."