Successfully complete the game with each of the standard characters to unlock a new character or stage.

Successfully complete the game with all standard and bonus characters.

Successfully complete the game, including the bonus stages, with every character.

Successfully complete all the missions to unlock the hidden art in the museum and a third costume for Sophitia, Voldo, Siegfried, Maxi, and Xianghua by pressing Y + A while selecting one of those characters. Completing all mission battles will unlock various museum options such as exhibition theater, opening direction (change the introduction), and character profiles. Additionally, an "Extra Survival" mode will also be unlocked at the main screen.

Successfully complete all the missions and the extra missions that appear after the Chaos stages. Then at the mission selection screen, move to the eastern-most map and place the pointer over Korea. Move over this area until the mission confirmation sound is heard.

Successfully complete all the missions and the extra missions that appear after the Chaos stages. Then at the mission selection screen, move to the western-most map and place the pointer between Germany and Russia. Move over this area until the mission confirmation sound is heard.

Begin a game in mission battle mode and fight until the "Metal Mode" option is unlocked. Then, hold R while selecting a fighter.

Unlock Edge Master and successfully complete all mission battles. Then at the character selection screen, hold L while selecting a character for extra weapons.

Unlock all the characters, stages, and extra bonuses that are awarded by playing the game in arcade mode and mission mode. Get every picture in the mission mode. When this is accomplished, return to the arcade mode, and select Xianghua and her third outfit by pressing Y + A. If desired, the game may be set to one round and the easy difficulty. Play through and complete the game with her. After the credits complete, a new soul (Inferno) will appear to the right of Edge Master. He randomly switches weapons like Edge Master, but has some moves of his own that can be done with any weapon.

Successfully complete all missions in mission battle mode for a golden title screen. Unlock Inferno and all 338 pictures in the Art Gallery for a monochrome title screen.

At the character selection screen, press Y to alternate all character costumes. Press Y again to change all character costumes back to their original.

At the character profiles screen, press L + R to remove the window on that screen.

Normally, the replay camera will focus on the winner of the match. Press B to change the focus to the losing character.

Win a match, then press X, Y, or B during the replay to select one of the victory poses.

Pause the game and press X + Y.

Unlock the profiles for each character. Press L + R at the character profiles screen to remove the window, then hold A + B + X + Y to reset the game. Hold X and press Start when demo mode starts. Then, return to the character profiles screen.

At the character selection screen, highlight Sophitia and continuously press one of the following buttons or combinations until she performs her pre-battle pose:

Each bonus character has the same fighting style as an original character, except for Inferno and Edge Master:

 

Bonus character	Style of
Hwang	Xianghua
Yoshimistsu	Misturugi
Lizard Man	Sophitia
Sigfried	Nightmare
Seung Mina	Kilik
Cervates	Taki
Rock	Astaroth

The following art cards will unlock the corresponding secret: