Guilty Gear X
Alternate costumes:
Press Start or Select when choosing a fighter at the character selection
screen.
Fight as Dizzy or Testament:
Press Down, Right(2), Up, Start at the "Press Start" screen.
Fight as Testament:
Press Up, Down, Right, Left, A at the "Press Start" screen.
Fight as Dizzy:
Press Down(2), R, L, R at the "Press Start" screen.
Original mode:
Press A, B, A, L(2) at the "Press Start" screen.
Limit release mode:
Press L, R, A(3) at the "Press Start" screen.
All Extra mode fighters:
Press Right, Down, Left, R(2) at the "Press Start" screen.
All Guilty Gear mode fighters:
Press Left, Down, Right, L(2) at the "Press Start" screen.
Dizzy:
Defeat the Dizzy's dare devil version in survival mode. Alternately, defeat
Dizzy on stage 10 in arcade mode.
Testament:
Defeat Testament's dare devil version in survival mode. Alternately, defeat
Testament in stage 9 and Dizzy on stage 10 in arcade mode.
Extra mode:
Defeat a fighter's dare devil version in survival mode to unlock extra mode
for that fighter. The fighter's extra version is able to execute new moves
and supers.
Original mode:
Successfully complete the game in survival mode to unlock the "Original Mode"
selection at the options screen.
Guilty Gear mode:
Select survival mode. Get to stage 180, then continue on and defeat all
opponents until reaching stage 330. The Guilty Gear versions will now be
unlocked.