Guilty Gear X - Dreamcast
Testament
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Get to level 20 in survival mode and Testament will
appear and challenge you. Defeat Testament to unlock
him as a selectable character.
Dizzy
-----
Get to level 30 in survival mode and Dizzy will appear
and challenge you. Defeat Dizzy to unlock her as a
selectable character.
Guilty Gear mode
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Get to level 100 in survival mode or successfully
complete the game using every character.
Alternate costumes
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Highlight a fighter at the character selection screen.
Press Start, Select, or A + X, or B + Y for more costume
colors.
Ending sequences
----------------
Successfully complete arcade mode to unlock the
corresponding character s ending sequence.
Soundtrack
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Place the small bonus disc in an audio CD player that
features a tray capable of playing a CD single disc.
Play track two and above to hear music from the game.
Hidden artwork
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Place the small bonus disc in a PC compatible CD-ROM that
features a tray capable of playing a CD single disc. Two
images from the game can be found in the extra folder.