Guilty Gear X Cheats - GBA

Alternate costumes
Press [Start] or [Select] when choosing a fighter at the character selection screen.

Fight as Dizzy or Testament
Press [Down], [Right]x2, [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]x2, [R], [L], [R] at the "Press Start" screen.

Original mode
Press [A], [B], [A], [L]x2 at the "Press Start" screen.

Limit release mode
Press [L], [R], [A]x3 at the "Press Start" screen.

All Extra mode fighters
Press [Right], [Down], [Left], [R]x2 at the "Press Start" screen.

All Guilty Gear mode fighters
Press [Left], [Down], [Right], [L]x2 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.

Tougher opponents
To fight difficult opponents, enter training mode. After choosing your characters, pause game play and go into the opponent settings. Change the mode of opponent from "Free" to "CPU". Also, change level of the CPU to "8". If you turn everything off that remains in the settings (regaining health, etc.), you will be able to fight the opponent in training mode just as in arcade mode. You can also change to tag and 3-on-3 in pause options. The CPU will now fight very hard.