Play as Testament: Go up to level 20 in survivor mode
and you will fight Testament. Beat him and you can play as
him.
Play as Dizzy: Go up to level 30 in survivor mode
and you will fight Dizzy. Beat her and you can play as her.
Guilty Gear mode: Beat arcade mode with all characters
to unlock Guilty Gear mode. You can also go up to level 100
in survivor mode to unlock this mode.
View character's ending: To view their ending, beat
arcade mode with any character without using continues.
Alternate costume colors: When selecting your character,
highlight a person and press Select to use his fifth costume;
A + X to use their sixth costume; and B + Y to use their seventh
costume.
Complete the game with any character to play as Testament.
Complete the game again to unlock the final boss.
Mini-Disc Cheat: If you place the mini-disc into your
CD player (make sure you get the hole lined up to fit on the
Cd players spindle. It will play the soundtrack for the game.
Also if you place the disc in to your pc (again making sure
it lines up with the spindle inside your cd drive), open the
Extra folder and you will have two images.
Hidden Warning: If you place the Large disc in to
your CD player you will hear an audio warning in Japanese.
It says basically, this is a game disc not a music disc so
quit trying to play it on your CD player.