Fight as Jinpachi Mishima:
Successfully complete Arcade mode to unlock Jinpachi
Mishima. Select him with Square for his Dark Resurrection
demon version, Triangle for his human version, or Circle
or X for his Tekken 5 demon form.
Fight as Panda:
Select the bear by pressing Circle at the selection
Fight as Yoshimitsu's alternate forms:
Choose Yoshimitsu at the selection screen with X
or Circle for normal form, Square for dark ninja
form, or Triangle for purple skinned ninja form.
Complete Arcade mode three times to unlock all stages in Versus mode.