All characters and gallery scenes:
To unlock all the artwork in the game, including all
ending scenes for every character, defeat Goodman in Survivor
Play mode. He will be the twenty first opponent you will face.
After defeating Goodman, win the following rounds in Survivor
Play mode against Goddess Athena, Mizuchi, Neo-Dio, Shin Shishioh,
then exit. A message will indicated that the whatever character
you defeated is now a playable character in every mode.