Guilty Gear Petit 2

Bonus characters:
Enter KDOKBNZY as a password to unlock Guilty Gear Millia, Guilty Gear May, Guilty Gear Sol, and Guilty Gear Ky.

Gallery mode:
Enter ADROPOUT to unlock the "Gallery" option at the Game Data screen.

Alternate costumes:
Enter BLACKMAS as a password to unlock all alternate costumes for all characters. Press Start + A, Y1, Y2, Y3, or Y4 to add Tension.

Alternate costumes:
Highlight a fighter, then press Y at the character selection screen.
Information in this section was contributed by tthurl.

Fight as Guilty Gear Jam:
Defeat Guilty Gear Jam in survival mode to unlock him in all game modes.
Information in this section was contributed by tthurl.

Fight as Guilty Gear Ky:
Defeat Guilty Gear Ky in survival mode to unlock him in all game modes.
Information in this section was contributed by tthurl.

Fight as Guilty Gear May:
Defeat Guilty Gear May in survival mode to unlock her in all game modes.
Information in this section was contributed by tthurl.

Fight as Guilty Gear Millia:
Defeat Guilty Gear Millia in survival mode to unlock her in all game modes.
Information in this section was contributed by tthurl.

Fight as Guilty Gear Sol:
Defeat Guilty Gear Sol in survival mode to unlock him in all game modes.
Information in this section was contributed by tthurl.

Fight as Guilty Gear Zato1:
Defeat Guilty Gear Zato1 in survival mode to unlock him in all game modes.
Information in this section was contributed by tthurl.

Fight as Testament:
Successfully complete the game in story mode with all default characters. Then, unlock and use two GG characters to complete story mode.
Information in this section was contributed by tthurl.