Alternate Colors At the character selection screen, press Square, Triangle, Circle, or X.
Hard Mode Hold Down + Square + L1 + R2 and power on the PlayStation. Continue to hold the buttons until the phrase "Team Neo Blood" disappears. If you entered the code correctly, "Normal Mode" will be replaced with "Hard Mode" and "Hard" will appear above the two player/computer chaos bar.
Play As Bosses (Japanese Version) At the Arc System Works logo, press Down + Square + L1 + R2. Then, release the buttons when the phrase "Team Neo Blood" disappears. Now Testament, Justice, and Baiken may be selected in versus mode.
Gameshark Guilty Gear Hacks
Infinite Time
8007BF72 0000
Infinite Health P1
8007CB98 00BC
Max Power P1
8007C8B8 0040
Character Modifier P1
80139048 000?
Infinite Health P2
8007CB68 00BC
Max Power P2
8007CB88 0040
Character Modifier P2
8013904C 000?
Quantity Digits to Accompany Character Modifier Codes
