Street Fighter 3: W Impact Cheats (Dreamcast)

Highlight Sean at the Street Fighter 3 Second Impact character selection screen and press
Up.

You got to get 3 perfects or more and then beat gill with each round with a super move.
Then you fight akuma and you have to beat him the same way.

Highlight Yun at the Street Fighter 3 character selection screen and press any Kick
button.

Successfully complete Street Fighter 3 or Street Fighter 3 Second Impact under any
difficulty setting. Highlight Sean at the character selection screen and press Up, Up.