Cammy is hidden in the second disc of Street Fighter Collection. To play as her, beat the game (Arcade Mode) with M. Bison (Vega) and place first in the high score ranking. Enter your initials as "CAM". Cammy will be now selectable in Vs. And Training Modes. Press start twice on M. Bison (Vega) in training or vs. mode to select her when at the character selection screen.