Syo and Gai strikers
At the practice mode character selection screen, highlight Kyo (original) and quickly press [Y]x30, then Press [Up], [Right]x3, [Up], [Left]x3, [Up]x2, [Right]x3, [Up]x2, [Left]x3, [Up], [Right]x3, [Up]x2. The pointer will be over the "Extra Striker" selection. Press [A]. Syo and Gai will appear in lower left corner of the screen. Note: This code was done with Alfred and Fio unlocked.